CN211397665U

CN211397665U - Mine safety monitoring device

Info

Publication number: CN211397665U
Application number: CN202020045234.9U
Authority: CN
Inventors: 谢其锋
Original assignee: Fuzhou University
Current assignee: Fuzhou University
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-09-01
Anticipated expiration: 2030-01-10

Abstract

The utility model provides a mine safety monitoring device, a serial communication port, include: the device comprises a gas flow monitoring device, a sound wave monitoring device, a communication module, a power supply module and a memory; the gas flow monitoring device comprises a spherical net body which is composed of a plurality of transverse cambered nets and a plurality of longitudinal cambered nets and is fixedly connected with the middle shaft, and a tachometer module; the sound wave monitoring device comprises a spherical net surface arranged on the outer side of the spherical net body, a plurality of detection vibration pieces and a microphone module; two ends of the detection vibrating piece are respectively fixedly connected with the spherical net surface and the middle shaft and penetrate through the spherical net body; the tachometer module and the microphone module are respectively connected with the middle shaft; the middle shaft is mounted on the monitoring device body through a bearing and connected with the communication module and the storage. The system realizes long-term and omnidirectional airflow velocity and sound wave monitoring at a fixed position, realizes discovery, tracking and positioning of abnormal phenomena at the first time, and sends out warning information in time.

Description

Mine safety monitoring device

Technical Field

The utility model belongs to mine safety monitoring field especially relates to the safety monitoring system in mine, mining area, especially monitors the safety monitoring device and the application method under the condition such as mining area and ground and open-air mining in metal mine and colliery mine, ore hole.

Background

In the processes of metal mining and coal mining, various production safety accidents are generally accompanied by phenomena of abnormal air flow or abnormal sound and the like. These abnormal events often occur before serious accidents such as explosion. However, in the prior art, there is no effective means for comprehensively and effectively monitoring the abnormal phenomena in mines and mining areas in real time, so that various safety early warning schemes have leaks and hysteresis, and the serious loss of lives and properties caused by the occurrence of safety accidents is difficult to avoid.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects and shortcomings in the prior art, the utility model provides a safety monitoring device for mines and mining areas and a using method thereof, which are used for solving the problems that the monitoring means of the existing monitoring device is single, the forecast level is weaker, and long-term effective monitoring can not be implemented on the monitoring place; the synchronous long-term effective monitoring of abnormal airflow and sound is realized, and effective means for information storage, reporting and response are provided. The technical scheme is as follows:

a mine safety monitoring device, characterized by, includes: the device comprises a gas flow monitoring device, a sound wave monitoring device, a communication module, a power supply module and a memory; the gas flow monitoring device comprises a spherical net body which is composed of a plurality of transverse cambered nets and a plurality of longitudinal cambered nets and is fixedly connected with the middle shaft, and a tachometer module; the sound wave monitoring device comprises a spherical net surface arranged on the outer side of the spherical net body, a plurality of detection vibration pieces and a microphone module; two ends of the detection vibrating piece are respectively fixedly connected with the spherical net surface and the middle shaft and penetrate through the spherical net body; the tachometer module and the microphone module are respectively connected with the middle shaft; the middle shaft is mounted on the monitoring device body through a bearing and connected with the communication module and the storage.

Preferably, the system further comprises a processor connected to the tachometer module, the microphone module, the communication module and the memory.

Preferably, a position recording device connected with the processor is further included.

Preferably, the communication module comprises a wireless communication module.

Preferably, the system further comprises an alarm module connected with the processor; the alarm module comprises an alarm lamp and a buzzer.

Compared with the prior art, the utility model discloses and preferred scheme has realized long-term, the omnidirectional air current velocity of flow and the sound wave monitoring at fixed position, through to a plurality of arrangement of treating the check point, can realize the all-round control to mine, mining area, realizes the discovery and the tracking location of abnormal phenomenon simultaneously in the very first time to in time send the information of warning, furthest has promoted the security of mine production work. Meanwhile, the comprehensive collection of the information of the provided device can further analyze the waveform information of the airflow and the sound, the big data is utilized to carry out characteristic analysis, and the accident can be further accurately classified and positioned.

Drawings

The invention will be described in further detail with reference to the following drawings and detailed description:

fig. 1 is a schematic view of modules and installation positions of an embodiment of the present invention;

FIG. 2 is a schematic side view of a gas flow monitoring device according to an embodiment of the present invention;

fig. 3 is a schematic top view of a gas flow monitoring device according to an embodiment of the present invention;

fig. 4 is a schematic side view of an acoustic wave monitoring apparatus according to an embodiment of the present invention;

fig. 5 is a schematic top view of an acoustic wave monitoring apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a control button according to an embodiment of the present invention;

in the figure: 100-medial axis; 200-gas flow monitoring device; 201-transverse cambered surface net; 202-longitudinal cambered surface net; 203-flow monitoring hole; 300-an acoustic wave monitoring device; 301-spherical mesh surface; 302-detecting vibrating piece; 400-a communication module; 500-a housing; 600-a power supply module; 700-a memory; 800-a buzzer; 900-a processor; 1000-position recording means; 1100-key module; 1101-storage time interval setting key; 1102-monitoring data storage time interval setting key; 1103-power switching key; 1104-warning light switch; 1105-setting keys for airflow monitoring range; 1106-setting keys for monitoring range of sound wave spectrum; 1107-main switch; 1108-an airflow monitoring switch; 1109-acoustic monitoring switch; 1200-warning light.

Detailed Description

In order to make the features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail as follows:

as shown in fig. 1 to 6, the device of the present embodiment has an outer case 500, and the following components and functional modules are provided in the case 500: middle axle 100, gas flow monitoring device 200, sound wave monitoring device 300, communication module 400, power supply module 600, memory 700, buzzer 800, warning light 1200, processor 900, position recording device 1000 and button module 1100.

The main structure for realizing the function is the spherical gas flow monitoring device 200 and the sound wave monitoring device 300 which are jointly installed on the central shaft 100, and are installed in the circular through groove on the shell 500, so that the information of gas flow and sound wave transmitted from all directions can be monitored. The middle shaft 100 is a metal shaft, is mounted on the monitoring device body through a bearing, can freely rotate under the condition of stress, and is connected with the communication module 400 and the memory 700.

As shown in fig. 2-3, the gas flow monitoring device 200 specifically includes a spherical net body fixedly connected to the central shaft 100 and composed of a plurality of transverse arc nets 201 and a plurality of longitudinal arc nets 202, and a tachometer module, wherein the gas flow passes through flow monitoring holes 203 on the spherical net body and drives the central shaft 100 to rotate, the tachometer module is used for acquiring the rotating speed of the central shaft 100 and outputting the rotating speed as an electric signal to be transmitted to the memory 700 and the processor 900, and the tachometer module can adopt a conventional tachometer rotating speed acquisition scheme in the prior art, such as laser type rotating speed acquisition, motor type rotating speed acquisition, and the like.

As shown in fig. 4-5, the acoustic wave monitoring device 300 includes a spherical net surface 301 disposed outside the spherical net body, a plurality of detecting vibrating pieces 302, and a microphone module; the two ends of the detection vibrating piece 302 are respectively fixedly connected with the spherical net surface 301 and the central shaft 100 and penetrate through the flow monitoring holes 203 on the spherical net body, so that synchronous vibration response can be carried out under the condition of sensing sound waves; the sound wave monitoring device 300 designed in the embodiment is essentially consistent with the mechanism of a vibrating-piece microphone, but can realize sound collection at 360 degrees, and is installed together with the gas flow monitoring device 200, so that the space is saved, and the synchronism and the accuracy of gas flow collection are ensured; the vibration collected by the detection vibrating piece 302 is transmitted to the middle shaft 100, collected by the microphone module and converted into corresponding electric signals, and the electric signals are transmitted to the memory 700 and the processor 900; wherein the microphone module can adopt the circuit design scheme of the vibration-electric conversion module of the existing microphone (microphone) device.

In this embodiment, the main task of the processor 900 is to compare the signals collected by the tachometer module and the microphone module with a preset threshold value, and when the threshold value is exceeded, initiate an alarm procedure. Therefore, in this embodiment, the minimum processor 900 can be implemented by using two comparison circuits, and in order to ensure more stable operation of the system and adjustable threshold, the minimum system of a single chip or a PLC is preferably used as the processor 900 in this embodiment.

In order to upload the collected data and the alarm and simultaneously attach the information of the position of the device, the embodiment uses a position recording device 1000 to record the position where the device is fixedly installed, the position information may be specific coordinate information, a given name, or a position ID, the position recording device 1000 preferably uses a low-cost and low-capacity memory 700 such as a flash memory chip, and is connected to the processor 900, and of course, the position recording device may also be implemented by opening up a storage space for the position information on the memory 700 for storing the data.

As for the memory 700, a conventional readable and writable storage device having a large capacity and capable of ensuring a stable operation for a long period of time may be used. The method has the effects that intervals of different time periods can be set according to requirements, monitored gas flow data and sound wave abnormal data are stored, and basis is provided for subsequent manual data analysis, comparison and prediction of possible gas abnormity.

In the scheme provided by this embodiment, the data can be uploaded to the monitoring center in a wired transmission manner or in a wireless transmission manner, and when the alarm information is notified to the handheld alarm receiving device in the mine, only a wireless transmission manner can be adopted, so that the communication module 400 needs to include a wireless transmission module, preferably, the 5G communication module 400 can be adopted in combination with a 5G internet of things base station, and also bluetooth communication modules 400 such as Zigbee can be adopted, and the base station is matched with the layout, so that the wireless network can be fully covered in the mine and the mine, and the effective transmission of the guarantee information can be realized. The local alarm is prompted by the buzzer 800 and the alarm lamp 1200.

As shown in fig. 6, in terms of function setting and switch control, the key module 1100 provided in this embodiment includes 9 keys, including: a storage time interval setting button 1101, a monitoring data storage time interval setting button 1102, a power supply switching button 1103, a warning light switch 1104, an airflow monitoring range setting button 1105 (for setting the gas flow at different time points recorded according to different time intervals), a sound wave spectrum monitoring range setting button 1106 (for setting the sound wave spectrum range to be collected and filtering noise), a master switch 1107, an airflow monitoring switch 1108, and a sound wave monitoring switch 1109.

In terms of power supply, the wired power supply module 600 may be used to directly utilize a power grid system laid in a mine, or the power supply module 600 based on a storage battery may be used.

Based on the apparatus provided above in this embodiment, the using method provided in this embodiment includes the following steps:

step S1: the monitoring devices are respectively arranged at the points to be monitored of the mine, at least the areas with potential safety hazards and the areas with intensive workers are covered, the distribution density can be adjusted according to actual needs, and the installation positions are recorded through the position recording device 1000; for example, the device can be fixed at various positions of a mine and a mine in different modes, including various positions of a pit, the top, the bottom, the side part and the like of the mine, so that the safety monitoring device can achieve the effect of long-term and effective monitoring at different monitoring positions.

Step S2: after the installation is finished, setting parameters such as a threshold value and the like and starting the device, wherein at the moment, if airflow exceeding the lowest intensity is generated in any direction, the central shaft 100 is driven to rotate by the gas flow monitoring device 200; if the sound exceeding the lowest intensity is emitted in any direction, the sound is collected by the sound wave monitoring device 300; the processor 900 compares the rotation speed of the middle shaft 100 collected by the tachometer module and the sound wave amplitude collected by the microphone module with preset thresholds respectively, and when the rotation speed value and/or the sound wave value are/is greater than the thresholds, the alarm module is triggered and alarm information is uploaded through the communication module 400; the alarm information includes location information of the monitoring device. Considering that sounds including equipment starting and people talking are "noises" that may interfere with the collection of abnormal information by the sound wave monitoring device 300 in mines and mining areas, the threshold value discrimination mechanism of the embodiment may mainly consider the discrimination of the gas flow monitoring device 200, for example, in the case of strong sound fluctuation, if there is no gas flow reaction, it is generally not judged as a leakage accident. Generally, the short-time and strong-fluctuation airflow is reflected, so that accidents are likely to happen, and the type of the accidents is judged by combining sound attributes. Meanwhile, information collection through the monitoring center can further eliminate interference on device collection in conditions such as high-strength construction in a construction area through information such as engineering schedule arrangement. Of course, for the collection of sound waves, it is possible to collect only sound information associated with an accident in a specific frequency band by setting so as to filter out extraneous sounds.

On the one hand, the alarm information is uploaded to an alarm receiving device carried by mine workers in the corresponding aspect of alarm; the alarm receiving device can be a handheld device, and can also be integrated with other safety equipment such as a safety helmet and the like, and the alarm receiving device displays the position information of the monitoring device which gives an alarm. The staff can timely take evacuation or evasion behaviors according to the prompt information.

Meanwhile, the alarm information is also uploaded to the monitoring center, the monitoring center can send an alarm according to the position of the monitoring device which uploads the alarm information, when a common accident happens, a plurality of monitoring devices can send an alarm, according to the summary of the monitoring center, the area where the dangerous source is located can be located according to the distribution situation of the alarm, and meanwhile, the safety position (the area where the alarm is not sent) can be analyzed preliminarily, so that an escape route is planned, and the alarm receiving device carried by mine workers is informed, so that the early warning is more accurate.

Further, the rotation speed information of the middle shaft 100 collected by the tachometer module and the sound wave information collected by the microphone module are recorded in the memory 700 and uploaded to the monitoring center through the communication module 400; the monitoring center can preliminarily judge the type of the accident by combining big data analysis according to the waveform characteristics of the rotating speed information and/or the sound wave information.

The two kinds of alarm prompts can be sent in sequence, the former is used as a front early warning to enable workers to be fully prepared, and the latter formal alarm can provide a full danger source and escape information for front-line workers.

The present invention is not limited to the above preferred embodiments, and any other mine safety monitoring device of various forms can be obtained by anyone who can benefit from the teaching of the present invention.

Claims

1. A mine safety monitoring device, characterized by, includes: the device comprises a gas flow monitoring device, a sound wave monitoring device, a communication module, a power supply module and a memory; the gas flow monitoring device comprises a spherical net body which is composed of a plurality of transverse cambered nets and a plurality of longitudinal cambered nets and is fixedly connected with the middle shaft, and a tachometer module; the sound wave monitoring device comprises a spherical net surface arranged on the outer side of the spherical net body, a plurality of detection vibration pieces and a microphone module; two ends of the detection vibrating piece are respectively fixedly connected with the spherical net surface and the middle shaft and penetrate through the spherical net body; the tachometer module and the microphone module are respectively connected with the middle shaft; the middle shaft is mounted on the monitoring device body through a bearing and connected with the communication module and the storage.

2. The mine safety monitoring device of claim 1, wherein: the microphone module is connected with the tachometer module and the communication module.

3. The mine safety monitoring device of claim 2, wherein: also included is a position recording device coupled to the processor.

4. The mine safety monitoring device of claim 3, wherein: the communication module includes a wireless communication module.

5. The mine safety monitoring device of claim 1, wherein: the alarm module is connected with the processor; the alarm module comprises an alarm lamp and a buzzer.