Ultrasonic echo positioning sphere sensor

Abstract

The utility model provides an ultrasonic echo positioning sphere sensor. The ultrasonic echo positioning sphere sensor comprises a main body part, a circuit board arranged in the main body part, a plurality of ultrasonic transceiving rings and signal cables which are electrically connected with the circuit board, and a mounting base, the ultrasonic transceiving ring is used for transmitting ultrasonic signals; the signal cable comprises a signal sending cable and a signal returning cable, and the signal sending cable is in signal connection with the upper computer and used for receiving an ultrasonic signal emission instruction sent by the upper computer and transmitting the instruction to the circuit board; and the signal return cable is used for transmitting the acquired data to an upper computer. According to the utility model, ultrasonic signals are actively transmitted, and acquired data are gathered to an acquisition instrument station through a signal return cable and then are transmitted to an upper computer through other cables and optical cables, so that the development degree of surrounding rock cracks can be clearly reflected, reasonable support can be conveniently carried out in advance, the possibility of rock caving is reduced, and the working efficiency is improved. And a reference value is provided for safe production of mines.

Description

Technical Field

[0001] The utility model relates to the field of mine safety, in particular to an ultrasonic echolocation spherical sensor. Background Art

[0002] In actual projects, especially tunnel and mine projects, in order to ensure the safety of the projects, a large number of sensors are usually installed underground in mines and inside tunnels to monitor the deformation and crack development of the surrounding rocks underground in mines and tunnels.

[0003] In actual engineering applications, the data collection principle of many sensors is to passively collect rock fracture information, that is, relative to the relationship between the sensor and the surrounding rock, when the rock around the sensor breaks, it releases energy, which is collected by nearby sensors, and then the degree of fracture of the surrounding rock is judged based on the number of rock fractures received by the sensor. To a certain extent, this passive monitoring method of rock fracture can only roughly estimate the damage of the rock around the sensor, and it is difficult to specifically confirm the size of the cracks in the surrounding rock.

[0004] For rocks underground and inside tunnels, the ultrasonic echolocation spherical sensor uses an active method to collect rock fracture information, that is, it monitors the surrounding rocks by emitting ultrasonic waves, and transmits the collected rock crack information back to the surface monitoring center, and displays the rock cracks in a three-dimensional model through relevant software, so that it can more specifically and vividly reflect the degree of fracture of the rock mass around the sensor, and can also directly and clearly reflect the size of the cracks. Utility Model Content

[0005] The utility model aims to provide an ultrasonic echolocation spherical sensor which has a simple structure, is easy to install and can reflect the rock fracture situation in detail and truly.

[0006] To achieve the above-mentioned purpose of the utility model, the utility model provides an ultrasonic echolocation sphere sensor, comprising a main body, a circuit board arranged in the main body, a plurality of ultrasonic transceiver coils and signal cables electrically connected to the circuit board, and a mounting base; the ultrasonic transceiver coil is used to transmit ultrasonic signals; the signal cable comprises a signal sending cable and a signal return cable, the signal sending cable is connected to a host computer signal, and is used to receive an ultrasonic signal transmission instruction issued by the host computer, and transmit the instruction to the circuit board; the signal return cable is used to transmit the collected data to the host computer; the circuit board is connected to an external power cord.

[0007] As a further improvement of the utility model, four ultrasonic transceiver coils are arranged in the main body, and the ultrasonic transceiver coils can rotate 360 ​​degrees to transmit ultrasonic signals to the surrounding rock mass and receive the returned ultrasonic signals.

[0008] As a further improvement of the utility model, a transceiver coil protective sleeve is provided on the outer periphery of the ultrasonic transceiver coil.

[0009] As a further improvement of the present invention, the main body is arranged in a solid spherical shape, including a sensor protection layer and a receiving space penetrating the main body; the receiving and transmitting ring protective tube is arranged in the receiving space.

[0010] As a further improvement of the present invention, the four ultrasonic transceiver coils have the same size.

[0011] As a further improvement of the utility model, a cover body is provided at one end of the transceiver ring protective tube, and a fixing bolt is provided on the cover body.

[0012] As a further improvement of the present invention, the other end of the transceiver ring protective tube is provided with an opening, and the signal sending cable, signal returning cable and external power line extend outward through the opening.

[0013] As a further improvement of the utility model, the outer peripheries of the signal sending cable, the signal returning cable and the external power line are sheathed with cable protective sleeves; the cable protective sleeves are connected to the transceiver ring protective sleeves.

[0014] As a further improvement of the present invention, the mounting base is arranged in a wedge shape.

[0015] As a further improvement of the present invention, the ultrasonic echolocation spherical sensor further comprises a guard rod, one end of which abuts against the mounting base, and the other end of which abuts against the outer wall of the cable sheath.

[0016] The beneficial effects of the utility model are:

[0017] The ultrasonic echolocation spherical sensor provided by the utility model comprises a main body in the shape of a solid sphere, a circuit board arranged in the main body, a plurality of ultrasonic transceiver coils and signal cables electrically connected to the circuit board, and a mounting base. The ultrasonic transceiver coil is used to transmit ultrasonic signals; the signal cable includes a signal transmission cable and a signal return cable, the signal transmission cable is connected to the host computer signal, and is used to receive the ultrasonic signal transmission instruction issued by the host computer; that is, the instruction is issued by the computer of the surface monitoring center, the signal is transmitted to the underground monitoring station through the optical cable and the cable, and then the instruction is issued to each sensor through the signal transmission cable between the underground monitoring station and each sensor. When the signal is transmitted to the circuit board of the sensor, the ultrasonic transceiver coil inside the sensor starts to rotate rapidly and transmits ultrasonic waves to the surrounding rocks; the signal return cable is used to transmit the collected data to the host computer; that is, after the ultrasonic wave is emitted for a certain distance (the distance can be set by the computer of the surface monitoring center), the collected rock and surrounding rock crack information is transmitted back to the ultrasonic transceiver coil along the original route, and the relevant data is transmitted to the circuit board. After being processed by the circuit board, the relevant data is transmitted to the underground monitoring station along the signal return cable, and finally the sensor data of the underground monitoring station is transmitted back to the computer of the surface monitoring center through the optical cable and the cable. After the data is summarized and transmitted to the computer, it is processed through matching software and the size, shape, distribution location and other information of the deep surrounding rock cracks in the mine are displayed in the form of a three-dimensional model, providing an important reference for mine support projects.

[0018] The ultrasonic echolocation spherical sensor of the utility model can directly and clearly reflect the development degree of the surrounding rock cracks by actively emitting ultrasonic signals. For the parts with relatively developed rock cracks, reasonable support can be carried out in advance to reduce the possibility of rock falling, which provides a certain reference value for the safe production of mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front schematic diagram of the ultrasonic echolocation spherical sensor of the utility model.

[0020] Figure 2 It is a side schematic diagram of the ultrasonic echolocation spherical sensor of the utility model.

[0021] Reference numerals

[0022] 100-ultrasonic echolocation spherical sensor; 1-main body; 11-sensor protection layer; 12-accommodation space; 2-circuit board; 3-ultrasonic transceiver coil; 41-signal sending cable; 42-signal return cable; 50-mounting base; 60-external power cord; 70-transceiver coil casing; 81-fixing bolt; 82-protective rod; 83-hole wall; 9-cable casing. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0025] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0026] See also Figure 1 to Figure 2 As shown, the utility model provides an ultrasonic echolocation spherical sensor 100, including a main body 1, a circuit board 2 arranged in the main body, a plurality of ultrasonic transceiver coils 3 and a signal cable electrically connected to the circuit board 2, and a mounting base 50. The ultrasonic transceiver coil 3 is used to transmit ultrasonic signals. The signal cable includes a signal transmission cable 41 and a signal return cable 42. The signal transmission cable 41 is connected to the host computer signal, and is used to receive the ultrasonic signal transmission instruction issued by the host computer, and transmit the instruction to the circuit board 2; the signal return cable 42 is used to transmit the collected data to the host computer. The circuit board 2 is connected to an external power supply line 60, and the ultrasonic echolocation spherical sensor 100 is powered by an external power supply to ensure the normal operation of the ultrasonic echolocation spherical sensor 100 after power is turned on.

[0027] Specifically, the main body 1 is in the shape of a solid sphere, including a sensor protection layer 11 and a receiving space 12 that penetrates the main body 1. Four ultrasonic transceiver coils 3 of the same size are arranged in the main body 1. After the circuit board 2 is powered by an external power cord 60, the ultrasonic transceiver coil 3 can rotate 360° uninterruptedly, and continuously transmit ultrasonic signals to the surrounding rock mass and receive ultrasonic signals sent back, and transmit the ultrasonic signals back to the data acquisition machine in the corresponding monitoring station through the signal return cable 42. It should be noted that those skilled in the art should understand that the number of ultrasonic transceiver coils 3 is not limited to four, and can be set according to specific needs.

[0028] In particular, the outer periphery of the ultrasonic transceiver coil 3 is provided with a transceiver coil protective sleeve 70 for protecting the ultrasonic transceiver coil 3. The transceiver coil protective sleeve 70 is arranged in the receiving space 12. One end of the transceiver coil protective sleeve 70 is provided with a cover body (not shown) that opens outwards, so that when the ultrasonic transceiver coil 3 fails, it is convenient to open the cover body and inspect the ultrasonic transceiver coil 3.

[0029] The cover is provided with fixing bolts 81 for fixing the ultrasonic echolocation spherical sensor 100 on the rock wall.

[0030] The other end of the transceiver ring sleeve 70 is provided with an opening (not numbered), through which the signal transmission cable 41, the signal return cable 42, and the external power supply line 60 extend outward.

[0031] The outer periphery of the signal transmission cable 41, the signal transmission cable 42, and the external power supply line 60 is sheathed with a cable sheath 9. The cable sheath 9 is connected to the transceiver ring sheath 70. It is used to ensure that the signal transmission cable 41, the signal transmission cable 42, and the external power supply line 60 are not broken.

[0032] The mounting base 50 is wedge-shaped and is disposed obliquely below the ultrasonic echolocation spherical sensor 100. This arrangement can increase the contact points between the sensor and the hole wall 83, improve the friction, and reduce the possibility of the sensor slipping out of the drill hole and being damaged during blasting, drilling and other activities.

[0033] In particular, the ultrasonic echolocation spherical sensor 100 further includes a guard rod 82 , one end of which abuts against the mounting base 50 , and the other end of which abuts against the outer wall of the cable sheath 9 , so as to improve the installation stability of the ultrasonic echolocation spherical sensor 100 .

[0034] The working principle of the ultrasonic echolocation sphere sensor 100 is described below:

[0035] The ultrasonic echolocation sphere sensor 100 starts to work after being powered on through the external power cord 60. First, the computer at the surface monitoring center sends a command to transmit the signal to the data acquisition instrument in the underground monitoring station through the optical cable and the cable. Then, the signal transmission cable 41 between the data acquisition instrument and each ultrasonic echolocation sphere sensor 100 sends a command to each ultrasonic echolocation sphere sensor 100. When the signal is transmitted to the circuit board 2 of the ultrasonic echolocation sphere sensor, the ultrasonic transceiver coil 3 inside the ultrasonic echolocation sphere sensor 100 starts to quickly Rotate and emit ultrasonic waves to the surrounding rocks (this is the signal transmission line); after the ultrasonic waves are emitted for a certain distance (the distance can be set by the computer of the surface monitoring center), the collected rock and surrounding rock crack information is transmitted back to the ultrasonic transceiver circle 3 along the original route, and the relevant data is transmitted to the circuit board 2. After being processed by the circuit board 2, the relevant data is transmitted along the signal transmission cable 42 to the data acquisition instrument in the underground monitoring station, and finally the collected data of each ultrasonic echolocation sphere sensor 100 is transmitted back to the computer of the surface monitoring center through the optical cable and cable (this is the signal transmission line). When the data is summarized and transmitted to the computer, it is processed by the software on the computer, and the ultrasonic transmission data is converted into Cartesian coordinates, and the size, shape, width, depth and other characteristics of the surrounding rock cracks around the sensor are directly reflected in the three-dimensional model, and finally the three-dimensional surrounding rock crack distribution map is displayed on the computer of the surface monitoring center.

[0036] To sum up, the ultrasonic echolocation spherical sensor 100 provided by the utility model is powered by an external power supply, and the surface monitoring center transmits an ultrasonic signal through the signal transmission cable 41, so as to monitor the surrounding rock around the bottom hole sensor in real time, and transmits the collected surrounding rock crack data back to the surface monitoring center through the signal transmission cable 42, and displays the size, shape, distribution position and other information of the deep surrounding rock cracks in the well in the form of a three-dimensional model, which provides an important reference for mine support engineering, and also provides further guarantee for the safe production of mines.

[0037] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. An ultrasonic echolocation spherical sensor, characterized in that: It includes a main body, a circuit board arranged in the main body, a plurality of ultrasonic transceiver coils and signal cables electrically connected to the circuit board, and a mounting base; the ultrasonic transceiver coil is used to transmit ultrasonic signals; the signal cable includes a signal sending cable and a signal return cable, the signal sending cable is connected to the host computer signal, and is used to receive the ultrasonic signal transmission instruction issued by the host computer and transmit the instruction to the circuit board; the signal return cable is used to transmit the collected data to the host computer; the circuit board is connected to an external power cord; four ultrasonic transceiver coils are arranged in the main body, and the ultrasonic transceiver coils can rotate 360 ​​degrees to transmit ultrasonic signals to the surrounding rock mass and receive the returned ultrasonic signals.

2. The ultrasonic echolocation spherical sensor according to claim 1, characterized in that: The outer periphery of the ultrasonic transceiver coil is provided with a transceiver coil protective sleeve.

3. The ultrasonic echolocation spherical sensor according to claim 2, characterized in that: The main body is arranged in a solid spherical shape, and comprises a sensor protection layer and a receiving space penetrating the main body; the transmitting and receiving ring protective tube is arranged in the receiving space.

4. The ultrasonic echolocation spherical sensor according to claim 1, characterized in that: The four ultrasonic transceiver coils have the same size.

5. The ultrasonic echolocation spherical sensor according to claim 2, characterized in that: A cover body is arranged at one end of the transceiver ring protective tube, and a fixing bolt is arranged on the cover body.

6. The ultrasonic echolocation spherical sensor according to claim 5, characterized in that: The other end of the transceiver ring protective tube is provided with an opening, and the signal sending cable, the signal returning cable and the external power line extend outward through the opening.

7. The ultrasonic echolocation spherical sensor according to claim 6, characterized in that: The outer peripheries of the signal sending cable, the signal returning cable and the external power line are sheathed with cable protective sleeves; the cable protective sleeves are connected to the transceiver ring protective sleeves.

8. The ultrasonic echolocation spherical sensor according to claim 7, characterized in that: The mounting base is arranged in a wedge shape.

9. The ultrasonic echolocation spherical sensor according to claim 8, characterized in that: The ultrasonic echolocation spherical sensor further comprises a guard rod, one end of which abuts against the mounting base, and the other end of which abuts against the outer wall of the cable sheath.

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