CN206515315U - Wireless measurement device for mining similar material simulation experiment - Google Patents

Abstract

Disclose a kind of wireless measurement device for mining similar material simulation experiment, sensor (7) includes the flexible member (14) being in close contact with upper loading plate (4) and lower loading plate (6) and the deformation detection element (15) of detection flexible member (14) deformation, upper loading plate (4) and lower loading plate (6) are positioned by connecting bolt (2) and flexible member (14) respectively causes the load being applied on upper loading plate (4) to act on flexible member (14), deformation detection element (15) generates measurement signal, data acquisition module (8) connects the sensor (7) to gather the measurement signal, wireless communication module (9) with antenna (1) connects the data acquisition module (8) to be wirelessly transferred measurement signal.

Description

Wireless measurement device for mining similar material simulation experiment

Technical field

The utility model is related to a kind of equivalent material simulating field, particularly a kind of to be used for mining equivalent material simulating The wireless measurement device of experiment.

Background technology

Similar material simulation experiment is widely used in mining engineering field, experimentation, how to use advanced test Method obtains true and reliable experimental data is Success in Experiment whether key point, real-time monitoring stope front and back, Pressure law below stope and in the coal body of stope rear, can to work on the spot face ground pressure strength and Water component is made to predict, is that Support selection etc. provides scientific basis.At present, in similar material simulation experiment, for monitoring The sensor of coal seam overlying strata pressure test is generally relatively large sized wired sensor, meanwhile, outside is equipped with data collecting instrument And software, whole system is complex, brings inconvenience to experiment, in order to overcome the shortcomings of existing dynamometric system, have developed A kind of less wireless force cell of size.

A kind of wireless and passive pre-stress sensor disclosed in patent document CN104614103 A, for detecting building structure In prestressed, reinforced change information, be made up of radio-frequency module, power module, data module and modulation module；Signal is by outside Equipment is launched, and sensor is reached via radio-frequency module, and be treated as burning voltage by power module powers for whole sensor, The analog signal collected is converted into data signal by data module, and modulated module is modulated data in radiofrequency signal, Demodulated and obtained by external equipment.The patent is realized carries out regular or length in the light mode of wireless and passive to the health of building The detection of phase, but the patent is without loading plate up and down, it is impossible to the load born accurately is measured, and wireless signal is faint, practicality Difference, the operability of the patent is poor, it is impossible to learn whether the working condition being located in building structure, signal are normal etc..

A kind of equivalent material simulating tomography experimental rig disclosed in patent document CN106128259 A includes framework, described Framework includes installing clamping plate on entablature, sill and lateral column, the sill, and the clamping plate can be slided simultaneously on sill It can be fixed on sill, the clamping plate is hinged rotor plate, the rotor plate center sets that installed in elongated slot, the elongated slot can edge The T-shaped plate that elongated slot is slided, the T-shaped plate includes two crossbeam branch are fixedly installed below space bar and limiting plate, the entablature Support and vertically-mounted compression system, described two below two lateral column support beams, the entablature are fixedly installed on the inside of beam, the lateral column It is transversely mounted on the inside of lateral column on the inside of compression system, the left and right sides post and baffle plate supporting plate, the baffle plate supporting plate is set respectively It is mobilizable to be arranged on lower and upper cross-member and vertically crossbeam horizontally slip, gear is installed between two baffle plate supporting plates of the left and right Plate, the baffle plate can horizontally slip relative to two baffle plate supporting plates；The compression system includes hold-down devices, two upper top dresses Put, bracket, pressurization backing plate, pressure sensor and processor, the bracket includes bottom plate and two sides being fixedly connected with bottom plate The wing, the piston rod of the hold-down devices is withstood on the bottom plate of bracket downwards, and the piston rod of upper ejection device withstands on the side of bracket upwards Pressurization backing plate is set below the wing, below bracket, pressure sensor is set between pressurization backing plate and bracket, the pressure sensor connects Connect processor, the hold-down devices and upper ejection device connection processor；The cylinder barrel of the hold-down devices of vertically-mounted compression system It is fixedly mounted on entablature, the cylinder barrel of upper ejection device is fixedly mounted in supporting crossbeam, the compression system being transversely mounted The cylinder barrel of hold-down devices is fixedly mounted on lateral column, and the cylinder barrel of two upper ejection devices is fixedly mounted in two side columns support beam.Should The actual pressure that patent applies is approached with theoretical pressure, and the measurement result of experiment is accurate, but the patent structure is complicated, it is impossible to portable Ground obtains detection signal, and wireless signal is faint, poor practicability, and the operability of the patent is poor, it is impossible to learns to be located at and builds Whether working condition, signal in building structure are normal etc..

A kind of intensity of similar material model monitoring device disclosed in patent document CN103399505 A, the analog material mould Test module needed for type strength-monitoring device includes single-chip computer AT89C52, buzzer BUZ1, temperature sensor DS18B20, liquid crystal Display AMPIRE128X64 and humidity sensor SHT11, described single-chip computer AT89C52 totally 39 pins, XTAL1 pins and XTAL2 pins are connected to 11.0592Mhz crystal oscillator X1 two ends, and series capacitance C1 and electric capacity respectively by wire respectively It is grounded altogether after C2, constitute parallel oscillatory circuit, wherein electric capacity C1 and the ceramic disc capacitor that electric capacity C2 is 30uf, is set for smooth starting of oscillation Put；Single-chip microcomputer RST pins are reset signal end, and connection 10K Ω resistance R2 is followed by ground end, keeps 0 signal to make herein Single-chip microcomputer normal work；The RST pins of single-chip computer AT89C52 are connected by electrochemical capacitor C3 with buzzer BUZ1 one end, honeybee The device other end that rings accesses list after connecting NPN type triode Q1 colelctor electrode, triode Q1 emitter grounding, base stage connection resistance R3 The P2.3 mouths of piece machine, the buzzer BUZ1 is used for humidity to threshold value alarm；Temperature sensor includes VCC, DQ and GND Three pins, VCC ends are power end, 5V power supplys are accessed, while VCC pin after connecting 4.7K Ω pull-up resistors R1 by accessing DQ Pin, data pin DQ ends separately connect single-chip microcomputer P2.0 ports, and GND ends are earth terminal, are directly grounded；Liquid crystal display AMPIRE128X64 totally 18 pins, external 5V power supplys, liquid crystal display are together accessed in wherein RST pins, RS pins and VCC ends Device AMPIRE128X64 needs both threads to carry out Serial Control, and E is terminated into single-chip microcomputer P2.2 ports, and R/W is terminated into single-chip microcomputer P2.1 ports；Humidity sensor SHT11 SCK ports access single-chip microcomputer P3.6 ports, DATA data terminals access single-chip microcomputer P3.7 Port；S1-S4 is 4 buttons, respectively execution+1, -1, displacement and recovery initial value function, and button S1 passes through pull-up resistor R4 and list The P0.0 ports of piece machine are connected, and button S2 is connected by pull-up resistor R5 with the P0.1 ports of single-chip microcomputer, and button S3 passes through Pull-up resistor R6 is connected with the P0.2 ports of single-chip microcomputer, and button S4 is connected by pull-up resistor R7 with the P0.3 ports of single-chip microcomputer It is logical.The patent can realize that the drying number of days to model is accurately controlled, but the patent is without loading plate up and down, it is impossible to essence The load born really is measured, and wireless signal is faint, poor practicability, the operability of the patent is poor, it is impossible to learns and is located at Whether working condition, signal in building structure are normal etc..

Disclosed above- mentioned information is used only for strengthening the understanding to the utility model background in the background section, therefore The information of prior art known to a person of ordinary skill in the art in not constituting home may be included.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a kind of for mining similar material simulation experiment Wireless measurement device, wireless measurement device determines without experiment advance rower every time, and size sensor is relatively small, to similar material Material can realize preferable coupling, reduce influence of the model close beta element to experimental result, sensor linearity is good, survey Accuracy of measurement is high, and measurement data is true and reliable, reduces acquisition Instrumen and connecting line, and system architecture is simple, reduces equipment event Barrier.

The purpose of this utility model is to be achieved by the following technical programs.

A kind of wireless measurement device for mining similar material simulation experiment includes being used to carry analog material mould Upper loading plate, lower loading plate and the containment vessel being located between the upper loading plate and lower loading plate of type weight, the lower carrying Plate, which is provided, is provided with sensor, data acquisition module and wireless communication module, the biography in smooth load-bearing surface, the containment vessel Sensor includes the change of the flexible member being in close contact with the upper loading plate and lower loading plate and the detection deformation of elastic element Shape detecting element, the upper loading plate and lower loading plate are positioned by connecting bolt and the flexible member respectively to be applied to Load on the upper loading plate acts on flexible member, and the deformation detection element generates measurement signal, data acquisition module The sensor is connected, the wireless communication module with antenna connects the data acquisition module, for whether just to indicate communication Normal signal lamp connects the wireless communication module, and the SR for reset and the shift knob for switch are electrically connected Sensor is connect, the signal lamp, SR and shift knob are located at containment vessel side.

Preferably, rechargeable battery, the rechargeable battery electrical connection sensor, data acquisition are provided with the containment vessel Module and wireless communication module.

Preferably, the side of containment vessel is provided with charging socket, and the charging socket electrically connects the rechargeable battery.

Preferably, the flexible member is aluminium alloy plate, and the deformation detection element is bridge type force-sensing sensor, described Bridge type force-sensing sensor includes the first half-bridge strain ga(u)ge set up separately between upper loading plate and flexible member and is located at bullet The second half-bridge strain ga(u)ge between property element and lower loading plate.

Preferably, the width of the aluminium alloy plate is not more than the width of the upper loading plate, the width of the aluminium alloy plate Less than the length of the upper loading plate, the first half-bridge strain ga(u)ge and the second half-bridge resistance-strain are calculated as the half-bridge of 45 degree of wire grids Strain ga(u)ge, the output sensitivity of the bridge type force-sensing sensor is 2.0mV/V, and synthesis precision is better than 0.05%F.S.

Preferably, the data acquisition module includes the A/ for being used to being converted to measurement signal into data signal by analog signal D conversion chips and the single-chip microcomputer for signal transacting, the display resolution of the data acquisition module is 0.01kg, sampling rate For 5 times/s.

Preferably, the wireless communication module includes 2.4G wireless communication units and USB communication interface, the usb communication Interface is arranged in containment vessel side.

Preferably, the external dimensions of the wireless measurement device is a height of 200mm × 30mm of length and width × 40mm, and range is 100kg。

Preferably, the upper loading plate and lower loading plate are made up by thickness of 9mm steel plate, and the rechargeable battery is 7.4V/1000mAh lithium ion battery.

Preferably, the data acquisition module includes memory, and the memory includes one or more read-only storages ROM, random access memory ram, flash memory or Electrical Erasable programmable read only memory EEPROM.

Described above is only the general introduction of technical solutions of the utility model, in order to cause technological means of the present utility model It is more clearly understood, reaches the degree that those skilled in the art can be practiced according to the content of specification, and in order to Above and other objects, features and advantages of the present utility model can be become apparent, below with of the present utility model specific Embodiment is illustrated.

Brief description of the drawings

By reading the detailed description hereafter in preferred embodiment, the various other advantage of the utility model and Benefit will be clear understanding for those of ordinary skill in the art.Figure of description is only used for showing the mesh of preferred embodiment , and be not considered as to limitation of the present utility model.It should be evident that drawings discussed below is only of the present utility model Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this A little accompanying drawings obtain other accompanying drawings.And in whole accompanying drawing, identical part is presented with like reference characters.

In the accompanying drawings：

Fig. 1 is the wireless measurement for mining similar material simulation experiment according to the utility model one embodiment The front view of device；

Fig. 2 is the wireless survey for mining similar material simulation experiment according to another embodiment of the utility model Measure the left view of device；

Fig. 3 is the wireless measurement for mining similar material simulation experiment according to the utility model one embodiment The top view of device；

Fig. 4 is the wireless measurement for mining similar material simulation experiment according to the utility model one embodiment The schematic cross-section of device.

Below in conjunction with drawings and examples, the utility model is further explained.

Embodiment

Specific embodiment of the utility model is more fully described below with reference to accompanying drawings.Although showing this reality in accompanying drawing With new specific embodiment, it being understood, however, that may be realized in various forms the utility model without that should be illustrated here Embodiment limited.It is opposite to be able to be best understood from the utility model there is provided these embodiments, and can be by Scope of the present utility model completely convey to those skilled in the art.

It should be noted that having used some vocabulary to censure specific components among specification and claim.Ability Field technique personnel it would be appreciated that, technical staff may call same component with different nouns.This specification and right It is required that not in the way of the difference of noun is used as differentiation component, but differentiation is used as with the difference of component functionally Criterion."comprising" or " comprising " as mentioned in working as in specification in the whole text and claim are an open language, therefore should be solved It is interpreted into " include but be not limited to ".Specification subsequent descriptions are implementation better embodiment of the present utility model, the right description It is for the purpose of the rule of specification, to be not limited to scope of the present utility model.Protection domain of the present utility model It is defined when depending on the appended claims person of defining.

For ease of the understanding to the utility model embodiment, done further by taking specific embodiment as an example below in conjunction with accompanying drawing Explanation, and each accompanying drawing does not constitute the restriction to the utility model embodiment.

In order to more fully understand, Fig. 1-4 is to be used for mining analog material according to the utility model one embodiment Front view, left view, top view and the schematic cross-section of the wireless measurement device of simulated experiment, it is similar that one kind is used for mining The wireless measurement device of material simulation experiment is including being used to carry the upper loading plate 4 of analog material, providing smooth load-bearing surface Lower loading plate 6 and the containment vessel 10 being located between the upper loading plate 4 and lower loading plate 6, the lower loading plate 6 provide smooth Sensor 7, data acquisition module 8 and wireless communication module 9 are provided with load-bearing surface, the containment vessel 10, the sensor 7 is wrapped Include the change that flexible member 14 and the detection flexible member 14 with the upper loading plate 4 and the close contact of lower loading plate 6 are deformed Shape detecting element 15, the upper loading plate 4 and lower loading plate 6 are made by connecting bolt 2 with the flexible member 14 positioning respectively The load that must be applied on the upper loading plate 4 acts on flexible member 14, and the deformation detection element 15 generates measurement signal, Data acquisition module 8 connects the sensor 7 to gather the measurement signal, the connection of wireless communication module 9 institute with antenna 1 Data acquisition module 8 is stated to be wirelessly transferred measurement signal, for indicating whether normal signal lamp 11 connects described for communication Wireless communication module 9, the SR 12 for reset and the electrical connection sensor 7 of shift knob 13 for switch, the letter Number indicator lamp 11, SR 12 and shift knob 13 are located at the side of containment vessel 10.

In one embodiment, the antenna 1 stretches out between upper loading plate 4 and containment vessel 10.For mining phase In the wireless measurement device tested like material simulation, when sensor 7 is carried, the strain ga(u)ge of deformed area is pasted on deformation And occurring resistance variations, the analog signal of sensor is converted to digital letter by and then output voltage signal, data acquisition module 8 Number, and communicated through wireless communication module 9 with computer software for measurement and control after being controlled and changing, computer software for measurement and control pair Measurement data is parsed, shown and handled.Built-in lithium battery 3 is sensor 7 and data acquisition module 8, wireless communication module 9 Power supply is provided.Charging socket 5 is used for battery charging and used, meanwhile, it is available for alternating current to use when battery electric quantity is not enough in experimentation. Long-press shift knob 13 to the bright rear sensor of indicator lamp can work on power, and be shut down by the sensor of SR 12.Signal designation Lamp 11 is used to point out sensor communication normal or abnormal, and when sensor communication is normal, signal lamp 11 is shown in green, and In flicker state, when sensor communication abnormality, signal lamp is shown in red.

In one embodiment, rechargeable battery 3 is provided with the containment vessel 10, the electrical connection of rechargeable battery 3 is passed Sensor 7, data acquisition module 8 and wireless communication module 9.

In one embodiment, the side of containment vessel 10 is provided with charging socket 5, the charging socket 5 electrically connect it is described can Rechargeable battery 3.

In one embodiment, the flexible member 14 is aluminium alloy plate, and the deformation detection element 15 is bridge type power Dependent sensor, the bridge type force-sensing sensor includes setting up separately the first half-bridge electricity between upper loading plate 4 and flexible member 14 Resistance strain gauge and the second half-bridge strain ga(u)ge being located between flexible member 14 and lower loading plate 6.

In one embodiment, the width of the aluminium alloy plate is not more than the width of the upper loading plate 4, the aluminium alloy The width of plate is less than the length of the upper loading plate 4, and the first half-bridge strain ga(u)ge and the second half-bridge resistance-strain are calculated as 45 degree The half-bridge strain ga(u)ge of wire grid, the output sensitivity of the bridge type force-sensing sensor is 2.0mV/V, and synthesis precision is better than 0.05%F.S.

In one embodiment, the data acquisition module 8 includes being used for measurement signal is converted into number by analog signal The A/D conversion chips of word signal and the single-chip microcomputer for signal transacting, the display resolution of the data acquisition module 8 is 0.01kg, sampling rate is 5 times/s.

In one embodiment, the wireless communication module 9 includes 2.4G wireless communication units and USB communication interface, institute State USB communication interface and be arranged in containment vessel side.

In one embodiment, the external dimensions of the wireless measurement device is a height of 200mm × 30mm of length and width × 40mm, Range is 100kg.

In one embodiment, the upper loading plate 4 and lower loading plate 6 are made up by thickness of 9mm steel plate, it is described can Rechargeable battery 3 is 7.4V/1000mAh lithium ion battery, and the data acquisition module 8 includes memory, the memory bag Include one or more read only memory ROMs, random access memory ram, flash memory or Electrical Erasable may be programmed it is read-only Memory EEPROM.

Wireless measurement device of the present utility model and its measuring method have the advantage that.

1. the wireless measurement device reduces the influence that cable is mated formation to model, model paving process is simplified, makes model Mat formation convenient and easy.

2. the sensor is determined without experiment advance rower every time, it need to only be reset by TT＆C software, operation letter It is single quick, greatly reduce the working strength of experimenter.

3. the sensor external, which only needs a data sink to be connected with computer measurement and control, can complete data transfer, reduce Acquisition Instrumen and connecting line, system architecture are simple, reduce equipment fault.

4. the size sensor is relatively small, with analog material can realize it is preferable couple, reduce survey inside model Try influence of the element to experimental result.

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

6. the sensor is furnished with signal lamp, communication can be pointed out whether normal, save the time of malfunction elimination.

7. the sensor is powered conveniently, you can powered with built-in lithium battery for it, when battery electric quantity is not enough, it can also use AC-powered.

Although embodiment of the present utility model is described above in association with accompanying drawing, the utility model does not limit to In above-mentioned specific embodiments and applications field, above-mentioned specific embodiment be only it is schematical, guiding, without It is restricted.One of ordinary skill in the art is under the enlightenment of this specification and is not departing from the utility model claim In the case of the scope protected, the form of many kinds can also be made, these belong to the row of the utility model protection.

Claims (10)

1. a kind of wireless measurement device for mining similar material simulation experiment, it includes being used to carry analog material mould Upper loading plate (4), lower loading plate (6) and the containment vessel being located between the upper loading plate (4) and lower loading plate (6) of type weight (10), the lower loading plate (6), which provides, is provided with sensor (7), data acquisition in smooth load-bearing surface, the containment vessel (10) Module (8) and wireless communication module (9), it is characterised in that：The sensor (7) include with the upper loading plate (4) and under hold The deformation detection element (15) for flexible member (14) and detection flexible member (14) deformation that support plate (6) is in close contact, institute Loading plate (4) and lower loading plate (6) is stated to position so that being applied to the flexible member (14) by connecting bolt (2) respectively Load on the upper loading plate (4) acts on flexible member (14), and the deformation detection element (15) generates measurement signal, number The sensor (7) is connected according to acquisition module (8), the wireless communication module (9) with antenna (1) connects the data acquisition module Block (8), for indicating whether normal signal lamp (11) connects the wireless communication module (9) for communication, for reset SR (12) and shift knob (13) the electrical connection sensor (7) for switch, the signal lamp (11), reset are pressed Button (12) and shift knob (13) are located at containment vessel (10) side.

2. the wireless measurement device according to claim 1 for mining similar material simulation experiment, its feature exists In：Rechargeable battery (3) is provided with the containment vessel (10), rechargeable battery (3) the electrical connection sensor (7), data are adopted Collect module (8) and wireless communication module (9).

3. the wireless measurement device according to claim 2 for mining similar material simulation experiment, its feature exists In：The side of containment vessel (10) is provided with charging socket (5), and the charging socket (5) electrically connects the rechargeable battery (3).

4. the wireless measurement device according to claim 1 for mining similar material simulation experiment, its feature exists In：The flexible member (14) is aluminium alloy plate, and the deformation detection element (15) is bridge type force-sensing sensor, the electric bridge Formula force-sensing sensor includes the first half-bridge strain ga(u)ge set up separately between upper loading plate (4) and flexible member (14) and is located at The second half-bridge strain ga(u)ge between flexible member (14) and lower loading plate (6).

5. the wireless measurement device according to claim 4 for mining similar material simulation experiment, its feature exists In：The width of the aluminium alloy plate is not more than the width of the upper loading plate (4), and the width of the aluminium alloy plate is less than on described Half resistor bridge that the length of loading plate (4), the first half-bridge strain ga(u)ge and the second half-bridge resistance-strain are calculated as 45 degree of wire grids should Become meter, the output sensitivity of the bridge type force-sensing sensor is 2.0mV/V, and synthesis precision is better than 0.05%F.S.

6. the wireless measurement device according to claim 1 for mining similar material simulation experiment, its feature exists In：The data acquisition module (8) includes the A/D conversion chips for being used to being converted to measurement signal into data signal by analog signal With the single-chip microcomputer for signal transacting, the display resolution of the data acquisition module (8) is 0.01kg, sampling rate is 5 times/ s。

7. the wireless measurement device according to claim 1 for mining similar material simulation experiment, its feature exists In：The wireless communication module (9) includes 2.4G wireless communication units and USB communication interface, and the USB communication interface is arranged in Containment vessel side.

8. the wireless measurement device according to claim 1 for mining similar material simulation experiment, its feature exists In：The external dimensions of the wireless measurement device is a height of 200mm × 30mm of length and width × 40mm, and range is 100kg.

9. the wireless measurement device according to claim 1 for mining similar material simulation experiment, its feature exists In：The upper loading plate (4) and lower loading plate (6) are made up by thickness of 9mm steel plate, and the rechargeable battery (3) is 7.4V/1000mAh lithium ion battery.

10. the wireless measurement device according to claim 1 for mining similar material simulation experiment, its feature exists In：The data acquisition module (8) includes memory, and the memory includes one or more read only memory ROMs, deposited at random Access to memory RAM, flash memory or Electrical Erasable programmable read only memory EEPROM.