CN106802340B - Wireless measurement device and method for simulation experiment of similar materials in mining - Google Patents

Abstract

The sensor (7) comprises an elastic element (14) and a deformation detection element (15), the elastic element (14) is in close contact with an upper bearing plate (4) and a lower bearing plate (6), the deformation detection element (15) is used for detecting deformation of the elastic element (14), the upper bearing plate (4) and the lower bearing plate (6) are positioned with the elastic element (14) through connecting bolts (2) respectively, so that load applied to the upper bearing plate (4) acts on the elastic element (14), the deformation detection element (15) generates a measurement signal, a data acquisition module (8) is connected with the sensor (7) to acquire the measurement signal, a wireless communication module (9) with an antenna (1) is connected with the data acquisition module (8) to wirelessly transmit the measurement signal, and the antenna (1) extends out from between the upper bearing plate (4) and a protective shell (10).

Description

Wireless measurement device and method for simulation experiment of similar materials in mining

technical field

The invention relates to the field of simulation of similar materials, in particular to a wireless measurement device and a measurement method for simulation experiments of similar materials in mining.

Background technique

Similar material simulation experiments are widely used in the field of mining engineering. During the experiment, how to use advanced testing methods to obtain real and reliable experimental data is the key to the success of the experiment. Real-time monitoring of the front and back of the mining work, the bottom of the mining work face and the mining work The pressure distribution law in the coal body behind the face can be used to predict the pressure force and step distance of the on-site working face, and provide a scientific basis for the selection of supports. At present, in similar material simulation experiments, the sensors used to monitor the coal seam overlying rock pressure test are mostly wired sensors with relatively large sizes. At the same time, the external data acquisition instrument and software are equipped, and the whole system is relatively complicated, which brings a lot of inconvenience to the experiment. , in order to overcome the deficiencies of the existing force-measuring system, a wireless force-measuring sensor with smaller size has been developed.

Patent document CN104614103 A discloses a wireless passive prestress sensor, which is used to detect information on steel bar prestress changes in building structures, and is composed of a radio frequency module, a power supply module, a data module and a modulation module; The module reaches the sensor and is processed by the power module to become a stable voltage to supply power to the entire sensor. The data module converts the collected analog signal into a digital signal, and the data is modulated onto the radio frequency signal by the modulation module, which is demodulated by an external device. This patent realizes the regular or long-term detection of the health of the building in a wireless, passive and portable way. However, the patent does not have upper and lower bearing plates, so the load cannot be accurately measured, and the wireless signal is weak, so the practicability is poor. The operability of the patent The performance is relatively poor, and it is impossible to know the working status of the building structure, whether the signal is normal, etc.

Patent document CN106128259 A discloses a similar material simulated fault test device comprising a frame, the frame includes an upper crossbeam, a lower crossbeam and side columns, a splint is installed on the lower crossbeam, the splint can slide on the lower crossbeam and can be placed on the lower crossbeam fixed on the top, the splint is hinged to the rotating plate, and a long groove is arranged in the center of the rotating plate, and a T-shaped plate that can slide along the long groove is installed in the long groove, and the T-shaped plate includes a spacer plate and a limiting plate. Two beam support beams are fixedly installed under the upper beam, and two side column support beams are fixedly installed inside the side columns, a pressurization system is installed vertically under the upper beam, and a pressurization system is installed horizontally inside the columns on both sides. The left and right sides of the columns are provided with baffle support plates respectively. The baffle support plates are movably installed on the upper and lower beams and can slide left and right along the upper and lower beams. A baffle plate is installed between the left and right two baffle support plates. The baffle plate can slide left and right relative to the two baffle plate support plates; the pressurization system includes a pressing device, two upper devices, a bracket, a pressure pad, a pressure sensor and a processor, and the bracket includes a bottom plate and the two side wings fixedly connected with the bottom plate, the piston rod of the pressing device pushes downwards against the bottom plate of the bracket, the piston rod of the upward pushing device pushes upwards under the side wings of the bracket, and a pressure pad is arranged under the bracket A pressure sensor is arranged between the plate, the press pad and the bracket, the pressure sensor is connected to the processor, and the press-down device and the top-up device are connected to the processor; the cylinder of the press-down device of the vertically installed pressurization system Fixedly installed on the upper beam, the cylinder of the jacking device is fixed on the beam support beam, the cylinder of the pressing device of the horizontally installed pressurization system is fixed on the side column, and the cylinders of the two jacking devices are fixed Installed on both side column support beams. The actual pressure applied by the patent is close to the theoretical pressure, and the experimental measurement results are accurate, but the structure of the patent is complex, and the detection signal cannot be obtained portablely, and the wireless signal is weak, so the practicability is poor. The operability of the patent is relatively poor, and it is impossible to know The working status and whether the signal is normal in the building structure, etc.

Patent document CN103399505 A discloses a similar material model strength monitoring device. The test modules required by the similar material model strength monitoring device include a single-chip microcomputer AT89C52, a buzzer BUZ1, a temperature sensor DS18B20, a liquid crystal display AMPIRE128X64 and a humidity sensor SHT11. MCU AT89C52 has a total of 39 pins, XTAL1 pin and XTAL2 pin are respectively connected to the two ends of the 11.0592Mhz crystal oscillator X1 through wires, and capacitor C1 and capacitor C2 are connected in series and then common ground to form a parallel oscillation circuit. C1 and capacitor C2 are ceramic capacitors of 30uf, which are set for smooth start-up; the RST pin of the single-chip microcomputer is the reset signal terminal, connect the 10KΩ resistor R2 and then connect to the ground terminal, and keep the 0 signal here to make the single-chip microcomputer work normally; The RST pin of the microcontroller AT89C52 is connected to one end of the buzzer BUZ1 through the electrolytic capacitor C3, the other end of the buzzer is connected to the collector of the NPN transistor Q1, the emitter of the transistor Q1 is grounded, and the base is connected to the resistor R3 and connected to the microcontroller. P2.3 port, the buzzer BUZ1 is used to alarm when the humidity reaches the threshold; the temperature sensor includes three pins VCC, DQ and GND, the VCC terminal is the power supply terminal, connected to the 5V power supply, and the VCC pin is connected to The 4.7KΩ pull-up resistor R1 is connected to the DQ pin, and the DQ end of the data pin is connected to the P2.0 port of the single-chip microcomputer. The pin and the VCC terminal are connected to an external 5V power supply together. The LCD monitor AMPIRE128X64 needs two wires for serial control. The E terminal is connected to the P2.2 port of the microcontroller, and the R/W terminal is connected to the P2.1 port of the microcontroller; The SCK port of the sensor SHT11 is connected to the P3.6 port of the single-chip microcomputer, and the DATA data terminal is connected to the P3.7 port of the single-chip microcomputer; S1-S4 are 4 buttons, which perform the functions of +1, -1, shift and restore the original value respectively, and the button S1 Connect the P0.0 port of the microcontroller through the pull-up resistor R4, connect the button S2 with the P0.1 port of the microcontroller through the pull-up resistor R5, connect the button S3 with the P0.2 port of the microcontroller through the pull-up resistor R6, and press the button S4 communicates with the P0.3 port of the microcontroller through the pull-up resistor R7. This patent can realize accurate control of the number of drying days of the model, but the patent does not have upper and lower bearing plates, so the load it bears cannot be accurately measured, and the wireless signal is weak, so the practicability is poor. The operability of the patent is relatively poor, and it is impossible to know the design The working status in the building structure, whether the signal is normal, etc.

The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art.

Contents of the invention

In view of the above problems, the object of the present invention is to provide a wireless measuring device and a measuring method thereof for simulation experiments of similar materials in mining. The wireless measuring device does not need to be calibrated before each experiment, and the size of the sensor is relatively small. It achieves better coupling, reduces the influence of the internal test components of the model on the experimental results, the sensor has good linearity, high measurement accuracy, and the measurement data is true and reliable, reducing external acquisition instruments and connecting lines, the system structure is simple, and equipment failures are reduced.

The purpose of the present invention is to be achieved through the following technical solutions.

In one aspect of the present invention, a wireless measuring device used for simulation experiments of similar materials in mining includes an upper bearing plate for carrying the weight of a similar material model, a lower bearing plate, and a The protective shell, the lower bearing plate provides a flat bearing surface, the protective shell is provided with a sensor, a data acquisition module and a wireless communication module, and the sensor includes an elastic material that is in close contact with the upper bearing plate and the lower bearing plate. element and a deformation detection element for detecting the deformation of the elastic element, the upper bearing plate and the lower bearing plate are respectively positioned with the elastic element through connecting bolts so that the load applied on the upper bearing plate acts on the elastic element, the The deformation detection element generates a measurement signal, the data acquisition module is connected to the sensor to collect the measurement signal, and the wireless communication module with an antenna is connected to the data acquisition module to wirelessly transmit the measurement signal. The signal indicator light used to indicate whether the communication is normal is connected to the wireless communication module, the reset button used for resetting and the switch button used for switching are electrically connected to the sensor, the signal indicator light, the reset button and the switch button Located on the side of the case.

Preferably, a rechargeable battery is provided in the protective case, and the rechargeable battery is electrically connected to the sensor, the data acquisition module and the wireless communication module.

Preferably, a charging socket is provided on one side of the protective case, and the charging socket is electrically connected to the rechargeable battery.

Preferably, the elastic element is an aluminum alloy plate, the deformation detection element is a bridge type force sensitive sensor, and the bridge type force sensitive sensor includes a first half-bridge resistor arranged between the upper bearing plate and the elastic element A strain gauge and a second half-bridge resistance strain gauge arranged between the elastic element and the lower bearing plate.

Preferably, the width of the aluminum alloy plate is not greater than the width of the upper bearing plate, the width of the aluminum alloy plate is smaller than the length of the upper bearing plate, the first half-bridge resistance strain gauge and the second half-bridge resistance strain gauge Calculated as a half-bridge resistance strain gauge with a 45-degree wire grid, the output sensitivity of the bridge-type force-sensitive sensor is 2.0mV/V, and the comprehensive accuracy is better than 0.05% F.S.

Preferably, the data acquisition module includes an A/D conversion chip for converting the measurement signal from an analog signal to a digital signal and a single-chip microcomputer for signal processing, the display resolution of the data acquisition module is 0.01kg, and the sampling rate 5 times/s.

Preferably, the wireless communication module includes a 2.4G wireless communication unit and a USB communication interface, and the USB communication interface is arranged on one side of the protective case.

Preferably, the external dimensions of the wireless measuring device are 200 mm x 30 mm x 40 mm in length, width and height, and the measuring range is 100 kg.

Preferably, both the upper load plate and the lower load plate are made of steel plates with a thickness of 9 mm, the rechargeable battery is a 7.4V/1000mAh lithium-ion battery, and the data acquisition module includes a memory, which includes one or Multiple read only memory ROM, random access memory RAM, flash memory or electronically erasable programmable read only memory EEPROM.

Another aspect of the present invention, a kind of measuring method step that utilizes described wireless measuring device for the simulation experiment of mining similar material comprises:

In the first step: the lower bearing plate of the wireless measuring device is placed on a flat bearing surface, and the similar material model is laid on the upper bearing plate.

In the second step: press the switch button to start the sensor, the sensor generates a measurement signal based on the deformation, the data acquisition module collects the measurement signal, and the wireless communication module wirelessly transmits the measurement signal.

In the third step: the computer receives and analyzes the measurement signal, generates a table display diagram, a curve display diagram, data storage and/or historical data playback of the measurement signal.

The above description is only an overview of the technical solution of the present invention. In order to make the technical means of the present invention clearer, to the extent that those skilled in the art can implement it according to the contents of the description, and to enable the above and other purposes of the present invention, The features and advantages can be more obvious and understandable, and the specific implementation manners of the present invention are illustrated below for illustration.

Description of drawings

Various other advantages and benefits of the present invention will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings in the description are for the purpose of illustrating preferred embodiments only and are not to be considered as limiting the invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts. Also throughout the drawings, the same reference numerals are used to denote the same parts.

In the attached picture:

Fig. 1 is the front view of the wireless measuring device used for the simulation experiment of mining similar materials according to one embodiment of the present invention;

Fig. 2 is the left side view of the wireless measuring device used for the simulation experiment of mining similar materials according to another embodiment of the present invention;

Fig. 3 is a top view of a wireless measuring device for a simulation experiment of similar materials in mining according to an embodiment of the present invention;

Fig. 4 is a schematic cross-sectional view of a wireless measuring device for a simulation experiment of similar materials in mining according to an embodiment of the present invention;

Fig. 5 is a schematic diagram of steps of a measurement method of a wireless measurement device suitable for a simulation experiment of mining similar materials according to an embodiment of the present invention.

The present invention will be further explained below in conjunction with the accompanying drawings and embodiments.

Detailed ways

Specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although specific embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and is not limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art should understand that they may use different terms to refer to the same component. The specification and claims do not use differences in nouns as a way of distinguishing components, but use differences in functions of components as a criterion for distinguishing. "Includes" or "comprises" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". The subsequent description in the specification is a preferred implementation mode for implementing the present invention, but the description is for the purpose of the general principles of the specification, and is not intended to limit the scope of the present invention. The scope of protection of the present invention should be defined by the appended claims.

In order to facilitate the understanding of the embodiments of the present invention, further explanations will be given below in conjunction with the accompanying drawings by taking specific embodiments as examples, and each drawing does not constitute a limitation to the embodiments of the present invention.

For better understanding, Fig. 1-4 is the front view, left side view, top view and schematic cross-sectional view of a wireless measuring device used for simulation experiments of mining similar materials according to an embodiment of the present invention, a kind of similar material used in mining The wireless measurement device of the simulation experiment comprises an upper bearing plate 4 for carrying similar materials, a lower bearing plate 6 providing a flat bearing surface and a protective shell 10 arranged between the upper bearing plate 4 and the lower bearing plate 6, the The protective shell 10 is provided with a sensor 7, a data acquisition module 8 and a wireless communication module 9. The sensor 7 includes an elastic element 14 that is in close contact with the upper bearing plate 4 and the lower bearing plate 6 and detects the deformation of the elastic element 14. The deformation detection element 15, the upper bearing plate 4 and the lower bearing plate 6 are respectively positioned with the elastic element 14 through the connecting bolt 2 so that the load applied on the upper bearing plate 4 acts on the elastic element 14, and the deformation The detection element 15 generates a measurement signal, the data acquisition module 8 is connected to the sensor 7 to collect the measurement signal, the wireless communication module 9 with the antenna 1 is connected to the data acquisition module 8 to transmit the measurement signal wirelessly, and the antenna 1 is connected to the sensor 7 to transmit the measurement signal wirelessly. Protrude between the upper carrier plate 4 and the protective case 10, the signal indicator light 11 for indicating whether the communication is normal is connected to the wireless communication module 9, the reset button 12 for reset and the switch button 13 for switching are electrically connected to the sensor 7. The signal indicator light 11 , the reset button 12 and the switch button 13 are arranged on one side of the protective case 10 .

In one embodiment, in the wireless measurement device used for the simulation experiment of similar materials in mining, when the sensor 7 is loaded, the resistance strain gauge pasted on the deformation area changes in resistance with deformation, and then outputs a voltage signal, and the data acquisition module 8 The analog signal of the sensor is converted into a digital signal, and after the control and conversion, the wireless communication module 9 communicates with the computer measurement and control software, and the computer measurement and control software analyzes, displays and processes the measurement data. The built-in lithium battery 3 provides power for the sensor 7, the data acquisition module 8, and the wireless communication module 9. The charging socket 5 is used for charging the battery, and at the same time, it can be used for alternating current when the battery power is insufficient during the experiment. Long press the switch button 13 until the indicator light is on, the sensor can be powered on and work, and the reset button 12 is pressed to shut down the sensor. The signal indicator light 11 is used to prompt that the sensor communication is normal or abnormal. When the sensor communication is normal, the signal indicator light 11 is displayed in green and blinking. When the sensor communication is abnormal, the signal indicator light is displayed in red.

In one embodiment, the protective case 10 is provided with a rechargeable battery 3 , and the rechargeable battery 3 is electrically connected to the sensor 7 , the data collection module 8 and the wireless communication module 9 .

In one embodiment, a charging socket 5 is provided on one side of the protective case 10 , and the charging socket 5 is electrically connected to the rechargeable battery 3 .

In one embodiment, the elastic element 14 is an aluminum alloy plate, the deformation detection element 15 is a bridge type force sensitive sensor, and the bridge type force sensitive sensor includes Between the first half-bridge resistance strain gauge and the second half-bridge resistance strain gauge between the elastic element 14 and the lower bearing plate 6 .

In one embodiment, the width of the aluminum alloy plate is not greater than the width of the upper bearing plate 4, the width of the aluminum alloy plate is smaller than the length of the upper bearing plate 4, the first half-bridge resistance strain gauge and the second The second half-bridge resistance strain gauge is a half-bridge resistance strain gauge with a wire grid of 45 degrees. The output sensitivity of the bridge type force sensitive sensor is 2.0mV/V, and the comprehensive accuracy is better than 0.05% F.S.

In one embodiment, the data acquisition module 8 includes an A/D conversion chip for converting the measurement signal from an analog signal to a digital signal and a single-chip microcomputer for signal processing, and the display resolution of the data acquisition module 8 is 0.01kg, the sampling rate is 5 times/s.

In one embodiment, the wireless communication module 9 includes a 2.4G wireless communication unit and a USB communication interface, and the USB communication interface is arranged on one side of the protective case.

In one embodiment, the external dimensions of the wireless measuring device are 200 mm x 30 mm x 40 mm in length, width, and height, and the measuring range is 100 kg.

In one embodiment, the upper bearing plate 4 and the lower bearing plate 6 are made of steel plates with a thickness of 9mm, the rechargeable battery 3 is a lithium ion battery of 7.4V/1000mAh, and the data acquisition module 8 includes Memory, said memory comprising one or more of read only memory ROM, random access memory RAM, flash memory or electronically erasable programmable read only memory EEPROM.

Fig. 5 is a schematic diagram of the steps of the measurement method using the wireless measurement device used for the simulation experiment of mining similar materials according to an embodiment of the present invention.

As shown in Figure 5, the measuring method utilizing the described wireless measuring device for the simulation experiment of mining similar materials includes:

In the first step: the lower bearing plate 6 of the wireless measuring device is placed on a flat bearing surface, and a similar material model is laid on the upper bearing plate 4 .

In the second step: press the switch button 13 to start the sensor 7, the sensor 7 generates a measurement signal based on the deformation, the data acquisition module 8 collects the measurement signal, and the wireless communication module 9 wirelessly transmits the measurement signal.

In the third step: the computer receives and analyzes the measurement signal, generates a table display diagram, a curve display diagram, data storage and/or historical data playback of the measurement signal.

The wireless measuring device and its measuring method of the present invention have the following advantages.

1. The wireless measuring device reduces the influence of cables on model paving, simplifies the model paving process, and makes model paving convenient and easy.

2. The sensor does not need to be calibrated before each experiment, it only needs to be reset through the measurement and control software, the operation is simple and fast, and the work intensity of the experimenter is greatly reduced.

3. Only one data receiver is needed outside the sensor to connect with computer measurement and control to complete the data transmission, which reduces the number of external collectors and connecting lines, the system structure is simple, and equipment failure is reduced.

4. The size of the sensor is relatively small, and it can achieve better coupling with similar materials, reducing the influence of the internal test components of the model on the experimental results.

5. The sensor has good linearity, high measurement accuracy, and the measurement data is true and reliable.

6. The sensor is equipped with a signal indicator light, which can prompt whether the communication is normal and save time for troubleshooting.

7. The sensor is conveniently powered, that is, it can be powered by a built-in lithium battery, and it can also be powered by AC power when the battery is insufficient.

8. The surface of the sensor has been waterproofed to prevent rust and the influence of water in similar material models on the performance of the sensor.

Although the embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments and application fields, and the above-mentioned specific embodiments are only illustrative, instructive, and not restrictive . Under the enlightenment of this description and without departing from the protection scope of the claims of the present invention, those skilled in the art can also make many forms, which all belong to the protection of the present invention.

Claims (10)

1. The utility model provides a wireless measuring device for similar material simulation experiment of mining, its includes last loading board (4), lower loading board (6) that are used for bearing similar material model weight and establishes protective housing (10) between last loading board (4) and lower loading board (6), lower loading board (6) provide smooth bearing surface, be equipped with sensor (7), data acquisition module (8) and wireless communication module (9) in protective housing (10), its characterized in that: the sensor (7) comprises an elastic element (14) and a deformation detection element (15), wherein the elastic element (14) is in close contact with the upper bearing plate (4) and the lower bearing plate (6), the deformation detection element (15) is used for detecting deformation of the elastic element (14), the upper bearing plate (4) and the lower bearing plate (6) are respectively positioned through a connecting bolt (2) and the elastic element (14) so that a load applied to the upper bearing plate (4) acts on the elastic element (14), the deformation detection element (15) generates a measurement signal, a data acquisition module (8) is connected with the sensor (7) for acquiring the measurement signal, a wireless communication module (9) with an antenna (1) is connected with the data acquisition module (8) for wirelessly transmitting the measurement signal, the antenna (1) extends out of the upper bearing plate (4) and the protective shell (10), a signal indicator lamp (11) used for indicating whether communication is normal or not is connected with the wireless communication module (9), a reset button (12) for resetting is electrically connected with a switch button (13) for switching, and the signal indicator lamp (11), the reset button (12) and the switch button (13) are electrically connected with the sensor (7) on one side.

2. The wireless measurement device for the mine exploitation similar material simulation experiment as claimed in claim 1, wherein preferably, a rechargeable battery (3) is arranged in the protective casing (10), and the rechargeable battery (3) is electrically connected with the sensor (7), the data acquisition module (8) and the wireless communication module (9).

3. The wireless measurement device for the simulation experiment of the similar materials in mining of the claim 2, characterized in that: one side of the protective shell (10) is provided with a charging socket (5), and the charging socket (5) is electrically connected with the rechargeable battery (3).

4. The wireless measurement device for the simulation experiment of the similar materials in mining of the claim 1, characterized in that: elastic element (14) are the aluminum alloy plate, deformation detecting element (15) are bridge type force sensitive sensor, bridge type force sensitive sensor is including dividing the first half-bridge resistance strain gauge of establishing between last loading board (4) and elastic element (14) and establishing the second half-bridge resistance strain gauge between elastic element (14) and lower loading board (6).

5. The wireless measurement device for the simulation experiment of the similar materials in mining of the claim 4, is characterized in that: the width of aluminium alloy plate is not more than go up the width of loading board (4), the width of aluminium alloy plate is less than go up the length of loading board (4), and first half-bridge resistance strain gauge and second half-bridge resistance strain gauge are the half-bridge resistance strain gauge of 45 degrees silk bars, the output sensitivity of bridge type force sensor is 2.0mV/V, and the comprehensive precision is superior to 0.05%.

6. The wireless measurement device for the simulation experiment of the similar materials in mining of the claim 1, characterized in that: the data acquisition module (8) comprises an A/D conversion chip for converting the measurement signal from an analog signal to a digital signal and a single chip microcomputer for signal processing, the display resolution of the data acquisition module (8) is 0.01kg, and the sampling rate is 5 times/s.

7. The wireless measurement device for the simulation experiment of the similar materials in mining of the claim 1, characterized in that: the wireless communication module (9) comprises a 2.4G wireless communication unit and a USB communication interface, and the USB communication interface is arranged on one side of the protective shell.

8. The wireless measurement device for the simulation experiment of the similar materials in mining of the claim 1, characterized in that: the external dimension of the wireless measuring device is 200mm multiplied by 30mm multiplied by 40mm in length, width and height, and the measuring range is 100kg.

9. The wireless measurement device for the similar material simulation experiment of the mining of the claim 1, characterized in that: the upper bearing plate (4) and the lower bearing plate (6) are both made of steel plates with the thickness of 9mm, the rechargeable battery (3) is a 7.4V/1000mAh lithium ion battery, the data acquisition module (8) comprises a memory, and the memory comprises one or more of a Read Only Memory (ROM), a Random Access Memory (RAM), a flash memory or an Electrically Erasable Programmable Read Only Memory (EEPROM).

10. A measuring method using the wireless measuring device for the simulation experiment of the mining similar materials in any one of the claims 1 to 9, comprising the steps of:

in the first step: placing a lower bearing plate (6) of the wireless measuring device on a flat bearing surface, and laying a similar material model on an upper bearing plate (4);

in the second step: pressing a switch button (13) to start a sensor (7), wherein the sensor (7) generates a measuring signal based on deformation, a data acquisition module (8) acquires the measuring signal, and a wireless communication module (9) wirelessly transmits the measuring signal;

in the third step: the computer receives and analyzes the measurement signal, and generates a table display graph, a curve display graph, data storage and/or historical data playback of the measurement signal.

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