1. The CT monitoring device for the mining coal face is characterized by comprising a vibration sensor, a stress sensor and a microcontroller, wherein the vibration sensor is connected with the input end of the microcontroller and used for monitoring vibration signals of a mined coal body in real time, the stress sensor is connected with the input end of the microcontroller and used for monitoring the stress signals of the mined coal body in real time, and the output end of the microcontroller is connected with a monitoring base station.

2. The mining coal face CT monitoring device of claim 1, further comprising a wireless ranging module connected to an input of the microcontroller for monitoring a distance between the wireless ranging module and the monitoring base station in real time.

3. The mining coal face CT monitoring device of claim 1, further comprising an inertial navigation sensor connected to an input of the microcontroller for real-time monitoring of spatial position.

4. The mining coal face CT monitoring device of claim 1, further comprising a communication module, wherein the microcontroller is connected with the monitoring base station through the communication module.

5. The mining coal face CT monitoring device of claim 4, wherein the communication module is a controller area network based communication module.

6. The mining coal face CT monitoring device of claim 1, further comprising a display module connected to an output of the microcontroller for displaying operating parameters of the microcontroller.

7. The mining coal face CT monitoring device of claim 6, wherein the display module is a digital display.

8. The mining coal face CT monitoring device of claim 1, further comprising a power module connected to the microcontroller for providing power.

9. A method of installing a mining coal face CT monitoring apparatus as claimed in any one of claims 1 to 8, including the steps of:

determining an installation position on the mined coal body, arranging a hole with a set depth at the installation position, and fixing an anchor rod in the hole;

and mounting the vibration sensor and the stress sensor on the exposed end of the anchor rod, and locking by using a nut.

10. The installation method of the mining coal face CT monitoring device according to claim 9, wherein the step of determining an installation position of the mined coal, setting a hole with a set depth at the installation position, and fixing the anchor rod in the hole specifically includes:

the hole is equidistant sets up a plurality ofly, and is a plurality of the hole is the same apart from the height of bottom plate, and highly is 1 meter to 1.5 meters.

Background

In the coal mining process, due to the fact that the distribution conditions of typical abnormal areas such as geological structures, abnormal stress areas and coal seam thickness changes in the coal mining body of a coal mine are different due to different geological conditions, the structures and the stress distribution conditions of the coal mining body cannot be sensed in advance, so that the danger source of the coal mining body cannot be pre-judged and prevented, safety accidents are easily caused, and the life safety of workers is threatened.

Disclosure of Invention

The invention provides a CT monitoring device for a mining coal face and an installation method, which are used for solving the defect that the coal body structure and the stress distribution condition of a stoped coal body cannot be effectively monitored in the coal mining process in the prior art, realizing the real-time effective monitoring of the coal body structure and the stress distribution condition of the stoped coal body and ensuring the safety of coal mining operation.

The invention provides a mining coal face CT monitoring device which comprises a vibration sensor, a stress sensor and a microcontroller, wherein the vibration sensor is connected with the input end of the microcontroller and used for monitoring vibration signals of a mined coal body in real time, the stress sensor is connected with the input end of the microcontroller and used for monitoring stress signals of the mined coal body in real time, and the output end of the microcontroller is connected with a monitoring base station.

The invention provides a CT monitoring device for a mining coal face, which further comprises a wireless distance measuring module, wherein the wireless distance measuring module is connected with the input end of a microcontroller and is used for monitoring the distance between the wireless distance measuring module and a monitoring base station in real time.

The mining coal face CT monitoring device further comprises an inertial navigation sensor, wherein the inertial navigation sensor is connected with the input end of the microcontroller and used for monitoring the spatial position in real time.

The mining coal face CT monitoring device further comprises a communication module, and the microcontroller is connected with the monitoring base station through the communication module.

According to the mining coal face CT monitoring device provided by the invention, the communication module is a communication module based on a controller local area network.

The mining coal face CT monitoring device further comprises a display module, wherein the display module is connected with the output end of the microcontroller and used for displaying working parameters of the microcontroller.

According to the mining coal face CT monitoring device provided by the invention, the display module is a digital display.

The mining coal face CT monitoring device further comprises a power supply module, and the power supply module is connected with the microcontroller and used for supplying power.

The invention also provides an installation method of the mining coal face CT monitoring device, which comprises the following steps:

determining an installation position on the mined coal body, arranging a hole with a set depth at the installation position, and fixing an anchor rod in the hole;

and mounting the vibration sensor and the stress sensor on the exposed end of the anchor rod, and locking by using a nut.

According to the installation method of the mining coal face CT monitoring device provided by the invention, the step of determining the installation position of the mined coal body, setting the hole with the set depth at the installation position and fixing the anchor rod in the hole specifically comprises the following steps:

the hole is equidistant sets up a plurality ofly, and is a plurality of the hole is the same apart from the height of bottom plate, and highly is 1 meter to 1.5 meters.

The invention provides a mining coal face CT monitoring device and an installation method, wherein a vibration sensor, a stress sensor and a microcontroller are arranged, the vibration sensor is connected with the input end of the microcontroller and is used for monitoring vibration signals of a mined coal body in real time, the stress sensor is connected with the input end of the microcontroller and is used for monitoring stress signals of the mined coal body in real time, the output end of the microcontroller is connected with a monitoring base station, the vibration signals of the mined coal body monitored by the vibration sensor in real time and the stress signals of the mined coal body monitored by the stress sensor in real time are received by the microcontroller, the microcontroller processes and analyzes the vibration signals and the stress signals to further obtain the structural condition inside the mined coal body, the vibration change and the stress change of the mined coal body in the coal mining process are monitored in real time, and a danger source is pre-judged and prevented, the safety of coal mining operation is improved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a block diagram of a mining coal face CT monitoring device provided by the invention;

FIG. 2 is an installation schematic diagram of a mining coal face CT monitoring device provided by the invention;

reference numerals:

1: a vibration sensor; 2: a stress sensor; 3: a microcontroller;

4: a wireless ranging module; 5: an inertial navigation sensor; 6: a communication module;

7: a display module; 8: a power supply module; 9: monitoring a base station;

10: coal bodies are mined; 11: and (4) a hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The mining coal face CT monitoring device of the present invention is described below with reference to fig. 1 and fig. 2, and includes a vibration sensor 1, a stress sensor 2, and a microcontroller 3, where the vibration sensor 1 is connected to an input end of the microcontroller 3 to monitor a vibration signal of a mined coal body 10 in real time, the stress sensor 2 is connected to an input end of the microcontroller 3 to monitor a stress signal of the mined coal body 10 in real time, and an output end of the microcontroller 3 is connected to a monitoring base station 9. It is understood that the vibration sensor 1 is provided to be installed at a monitoring position of the recovered coal body 10 and to monitor a vibration signal of the recovered coal body 10 in real time. The stress sensor 2 is arranged to be installed at a monitoring position of the recovered coal body 10 and is used for monitoring a stress signal of the recovered coal body 10 in real time. The vibration sensor 1 and the stress sensor 2 are arranged on the same monitoring position, so that the vibration condition and the stress change of the monitoring position of the coal mining body 10 can be monitored in real time. Vibration sensor 1 and stress sensor 2 are connected with microcontroller 3's input respectively, realize the vibration signal to vibration sensor 1 monitoring and the real-time receipt of the stress signal of stress sensor 2 monitoring to vibration signal and stress signal are handled through microcontroller 3, obtain the vibration condition and the stress change condition of stope coal body 10, and then judge the inside structure condition of stope coal body 10, in time predict and prevent and treat the danger source, improve the security of coal mining operation.

The mining coal face CT monitoring device provided by the invention further comprises a wireless distance measuring module 4, wherein the wireless distance measuring module 4 is connected with the input end of the microcontroller 3 and is used for monitoring the distance between the wireless distance measuring module 4 and the monitoring base station 9 in real time. It can be understood that the wireless distance measuring module 4 is installed on the coal mining recovery body 10 and connected with the input end of the microcontroller 3 for monitoring the distance between the CT monitoring device and the monitoring base station 9 in real time, that is, the relative position of the mining face and the monitoring base station 9 is monitored in real time through the wireless distance measuring module 4, so as to obtain the relative position of the dangerous source and the monitoring base station 9, and facilitate the fixed-point clearing of the staff to the dangerous source.

The mining coal face CT monitoring device further comprises an inertial navigation sensor 5, wherein the inertial navigation sensor 5 is connected with the input end of the microcontroller 3 and used for monitoring the spatial position in real time. It can be understood that inertial navigation sensor 5 is set to be installed on the monitoring position of coal mining body 10, and is installed on same monitoring position with vibration sensor 1 and stress sensor 2 for real-time supervision CT monitoring devices's spatial position, and then cooperates wireless ranging module 4, obtains danger source and monitoring basic station 9's relative spatial position, makes things convenient for the staff to clear away the fixed point of danger source, improves prevention and cure efficiency, reduces staff's intensity of labour.

The mining coal face CT monitoring device further comprises a communication module 6, and the microcontroller 3 is connected with a monitoring base station 9 through the communication module 6. It can be understood that the communication module 6 realizes that the microcontroller 3 transmits the vibration condition and the stress variation condition of the monitored coal recovery body 10 to the monitoring base station 9, thereby facilitating the remote monitoring and control of the working personnel. It should be noted that, the staff can input the working instruction through the operation monitoring base station 9 and send the working instruction to the microcontroller 3 through the communication module 6, so as to realize remote control and improve the automation degree.

According to the mining coal face CT monitoring device provided by the invention, the communication module 6 is a communication module 6 based on a controller local area network. It can be understood that the signal transmission between the microcontroller 3 and the monitoring base station 9 is realized by adopting a controller local area network, so that the transmission efficiency and accuracy of data signals are ensured, and the real-time performance of monitoring results is ensured.

The mining coal face CT monitoring device further comprises a display module 7, wherein the display module 7 is connected with the output end of the microcontroller 3 and used for displaying working parameters of the microcontroller 3. It is understood that the display module 7 is connected to the output of the microcontroller 3 for displaying the operating parameters of the microcontroller 3, wherein the operating parameters include the operating state (on or off), the signal strength, and the data transmission speed.

According to the mining coal face CT monitoring device provided by the invention, the display module 7 is a digital display. It can be understood that the digital display has long service life, is suitable for coal mining environment and has high display definition.

The mining coal face CT monitoring device further comprises a power supply module 8, and the power supply module 8 is connected with the microcontroller 3 and used for supplying power. It can be understood that the power supply module 8 is connected with the microcontroller 3, and supplies power to the vibration sensor 1, the stress sensor 2, the microcontroller 3, the wireless distance measuring module 4, the inertial navigation sensor 5, the communication module 6 and the display module 7 through a power supply circuit, so that the normal work of the CT monitoring device is ensured.

The invention also provides an installation method of the mining coal face CT monitoring device, which comprises the following steps:

determining an installation position on the coal mining body 10, setting a hole 11 with a set depth at the installation position, and fixing an anchor rod in the hole 11;

and mounting the vibration sensor 1 and the stress sensor 2 at the exposed end of the anchor rod, and locking by using a nut.

According to the installation method of the mining coal face CT monitoring device provided by the invention, the installation position is determined on the coal mining body 10, the hole 11 with the set depth is arranged at the installation position, and the anchor rod is fixed in the hole 11, and the method specifically comprises the following steps:

the holes 11 are arranged at equal intervals, and the heights of the holes 11 from the bottom plate are the same and are 1-1.5 m.

The invention provides an installation method of a mining coal face CT monitoring device, which specifically comprises the following steps:

determining a plurality of installation positions, namely monitoring positions, in the coal mining body 10, and setting holes 11 with set depth at the installation positions, wherein the set depth is 2 meters, each installation position corresponds to one hole 11, the distances S between two adjacent holes 11 are the same, and the value of S can be adjusted and set according to the specific condition of the coal mining body 10, wherein S is 1 meter in the embodiment, so that the comprehensive coverage monitoring of the coal mining body 10 is realized, and the optimal monitoring effect is ensured;

the plurality of holes 11 have the same height from the bottom plate, wherein the height h is 1-1.5 m, the monitoring position is the frequent danger source position of the mined coal 10, the monitoring efficiency is improved, and the monitoring effect is ensured;

the anchor rods are fixedly arranged in the holes 11 and correspond to the holes 11 one by one, and the anchor rods are used for correspondingly arranging the CT monitoring devices one by one;

the vibration sensor 1 and the stress sensor 2 are arranged at the exposed end of the anchor rod and are locked by nuts, so that the relative fixation of the vibration sensor 1 and the stress sensor 2 and the anchor rod is ensured, the vibration and stress change of the mined coal body 10 are transmitted to the anchor rod, the vibration sensor 1 monitors the vibration signal of the anchor rod, meanwhile, the stress sensor 2 monitors the stress signal of the anchor rod, the microcontroller 3 obtains the vibration condition and stress change condition of the anchor rod and converts the vibration condition and stress change condition into the internal structure condition of the mined coal body 10, and then the monitoring information is transmitted to the monitoring base station 9 in real time through the communication module 6;

distance information monitored by the wireless distance measurement module 4 and spatial position information monitored by the inertial navigation sensor 5 are transmitted to the monitoring base station 9 by the microcontroller 3 through the communication module 6, when a dangerous source (the vibration frequency is greater than a safety value or the stress value is greater than the safety value) is monitored, the relative spatial position of the dangerous source and the monitoring base station 9 is obtained, the dangerous source is conveniently positioned by a worker at the first time, positioning prevention and control are carried out, the prevention and control efficiency is improved, and the safety of coal mining operation is guaranteed.

The invention provides a mining coal face CT monitoring device and an installation method, through arranging a vibration sensor, a stress sensor and a microcontroller, the vibration sensor is connected with the input end of the microcontroller, used for monitoring the vibration signal of the coal recovery body in real time, the stress sensor is connected with the input end of the microcontroller, the system is used for monitoring the stress signal of the recovered coal body in real time, the output end of the microcontroller is connected with the monitoring base station, the microcontroller receives the vibration signal of the recovered coal body monitored by the vibration sensor in real time and the stress signal of the recovered coal body monitored by the stress sensor in real time, the microcontroller processes and analyzes the vibration signal and the stress signal, and then obtaining the structural condition of the inner part of the stoped coal body, monitoring the vibration change and the stress change of the stoped coal body in real time in the coal mining process, carrying out prejudgment and prevention on dangerous sources, and improving the safety of coal mining operation.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.