Mining temperature and humidity monitoring system and monitoring method thereof

Abstract

The invention relates to the technical field of mining temperature and humidity monitoring, in particular to a mining temperature and humidity monitoring system and a monitoring method thereof.The mining temperature and humidity monitoring system comprises a protective shell, a connecting piece and a protective cover; a connecting piece is installed on the outer side of the protective shell, a protective cover is installed on one side of the protective shell, a dustproof net is installed on the inner side of one end of the protective cover, and a cleaning mechanism is installed on the outer side of one end of the protective cover. According to the invention, circulation of air around the sensor can be ensured, dust with large particle size can be automatically processed, the processing interval is relatively infrequent, and by introducing a dust accumulation error compensation algorithm, the influence of dust accumulation on temperature and humidity measurement can be effectively reduced, and the accuracy of monitoring data is improved; moreover, the system can be linked with other mine safety monitoring systems, and provides a more comprehensive environment monitoring solution.

Description

Technical Field

[0001] The invention relates to the technical field of mine temperature and humidity monitoring, and in particular to a mine temperature and humidity monitoring system and a monitoring method thereof. Background Art

[0002] The mine temperature and humidity monitoring system is a monitoring device specially designed for underground coal mine environments. It is used to monitor and record the temperature and humidity in the mine in real time. These systems are essential to ensure the safety of miners and the working environment in the mine, because changes in temperature and humidity may affect the health of miners, the performance of equipment, and safety in the mine.

[0003] The temperature and humidity monitoring system for mines helps prevent health problems and safety accidents caused by environmental conditions and is an important part of safe production in coal mines.

[0004] Due to the complexity of the underground environment, dust is easily accumulated on the surface of the sensor, resulting in errors in temperature and humidity monitoring. This error not only affects the accuracy of the measurement, but may also have an adverse impact on mine safety management. Generally, a dust net or a cleaning device is installed on the outside of the sensor to improve the accuracy of the monitoring data. However, if a dust net is installed on the outside of the sensor, if the mesh size of the dust net is too large and a small amount of dust adheres to the surface, it will affect the air flow around the sensor. If it cannot be cleaned frequently, it will affect the monitored data. If a cleaning device is directly installed on the sensor housing, the cleaning device needs to work frequently to ensure the cleanliness of the outside of the sensor. However, during the cleaning process, dust is easily mixed between the cleaning device and the sensor, which easily causes wear of the cleaning device and the sensor. There is also a friction problem between the cleaning device and the sensor, which also affects the accuracy of the monitoring data. Therefore, a mine temperature and humidity monitoring system and a monitoring method thereof are proposed to address the above problems. Summary of the invention

[0005] The object of the present invention is to provide a temperature and humidity monitoring system and a monitoring method for a mine, so as to solve the problem that due to the complexity of the underground environment, dust is easily accumulated on the surface of the sensor, thereby causing errors in temperature and humidity monitoring. This error not only affects the accuracy of the measurement, but may also have an adverse effect on the safety management of the mine. Generally, a dustproof net or a cleaning device is installed on the outside of the sensor to improve the accuracy of the monitoring data. However, if a dustproof net is installed on the outside of the sensor, if the mesh number of the dustproof net is too large and a small amount of dust adheres to the surface, it will affect the air flow around the sensor. If it cannot be cleaned frequently, it will affect the monitored data. If a cleaning device is directly installed on the sensor housing, the cleaning device needs to work frequently to ensure the cleanliness of the outside of the sensor. However, during the cleaning process, dust is easily mixed between the cleaning device and the sensor, which easily causes wear of the cleaning device and the sensor. There is also a friction problem between the cleaning device and the sensor, which also affects the accuracy of the monitoring data.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A temperature and humidity monitoring system for a mine and a monitoring method thereof, comprising a protective shell, a connector and a protective cover, wherein the upper end of the protective shell is fixedly connected with a communication module for transmitting compensated temperature and humidity data to a ground monitoring center and supporting data linkage with other mine safety monitoring systems, a connector is installed on the outer side of the protective shell, a protective cover is installed on one side of the protective shell, a dustproof net is installed on the inner side of one end of the protective cover, and a cleaning mechanism is installed on the outer side of one end of the protective cover; the cleaning mechanism comprises a rotating ring plate, the inner side of the rotating ring plate is rotatably connected to the protective cover through a first bearing, one side of the rotating ring plate is fixedly connected to the motor protective shell through a connecting rod, and the connecting rod is close to the protective cover. A cleaning plate is fixedly connected to the end face of the cover, the inner side of one end of the motor protection shell is rotatably connected to the protection cover through a second bearing, and the middle of the other end of the motor protection shell is fixedly connected to the main shaft of the micro motor; temperature and humidity sensors for real-time monitoring of humidity and temperature data in the mine are installed inside the protective shell and the protective cover, and the monitoring head of the temperature and humidity sensor is arranged between the dustproof nets, and a data processing module and a compensation module are installed inside the protective shell, and the data processing module and the compensation module include a real-time data acquisition unit and a dust accumulation error compensation algorithm module for receiving the original data of the temperature and humidity sensor, and dynamically compensating according to the amount of dust accumulation, and outputting the compensated temperature and humidity data.

[0008] As a further optimized content of the present invention, the dust accumulation error compensation algorithm module is used to compensate for the temperature and humidity measurement error caused by dust accumulation. The specific calculation formula is:

[0009] T comp (t) = T raw (t)-ΔT d (t)

[0010] H comp (t) = H raw (t)-ΔH d (t)

[0011] in,

[0012] Where: T comp (t) is the temperature after compensation, H comp (t) is the humidity after compensation, ΔT d (t) is the temperature error, ΔH d (t) is the humidity error, Di is the i-th dust accumulation sample, ΔT i , ΔH iis the temperature and humidity error corresponding to the i-th dust accumulation, is the average value of dust accumulation, are the average values ​​of temperature and humidity errors, ΔT Di =0 and ΔH Di =0 are the temperature and humidity errors measured under the condition of no dust accumulation.

[0013] As a further optimization of the present invention, the accumulation amount of dust is calculated by a formula, and the specific formula is:

[0014] D(t)=D0-(1-e -kt )

[0015] Where: D(t) is the amount of dust accumulation, D0 is the initial dust accumulation, and k is the time constant.

[0016] As a further optimization of the present invention, there are four connecting rods, which are equidistantly distributed in a ring shape on the outside of one end of the protective cover, and are parallel to each other. The protective cover is cylindrical, and the vertical section of the motor protective shell is U-shaped, and the motor protective shell and the micro motor have the same axis.

[0017] As a further optimization of the present invention, there are two dust-proof nets, the dust-proof nets are arranged in an arc shape, and there are four cleaning plates, and the cleaning plates correspond to the connecting rods one by one.

[0018] As a further optimized content of the present invention, wherein: the communication module supports both wireless transmission and wired transmission, and a signal line jack is provided on the communication module.

[0019] As a further optimization of the present invention, the system has the function of detecting and providing feedback on the amount of dust accumulation. When the amount of accumulation reaches a preset threshold, the system automatically alarms and triggers the micro motor.

[0020] As a further optimized content of the present invention, the data processing and compensation module has a self-learning function, which can optimize the compensation algorithm through historical data to improve the compensation accuracy.

[0021] As a further optimized content of the present invention, the data processing and compensation module uses a recursive least squares method or a Kalman filter algorithm to adjust the compensation model parameters in real time to adapt to changes in the underground environment.

[0022] As further optimized content of the present invention, the following steps are included: Step I: Data acquisition: The temperature and humidity sensor detects the underground temperature and humidity in real time through the protective housing and the protective cover, and transmits the original data to the data processing and compensation module;

[0023] Step II: Calculation of dust accumulation: Calculate the dust accumulation in real time according to the installation time of the temperature and humidity sensor;

[0024] Step III: Error compensation algorithm: according to the calculated dust accumulation amount, the error amount is calculated in real time;

[0025] Step IV: Data transmission and display: The compensated temperature and humidity data are transmitted to the ground monitoring center through the communication module and displayed in real time on the monitoring interface;

[0026] Step V: Automatic cleaning and calibration: When the dust accumulation reaches the set threshold, the system automatically starts and controls the micro motor to drive the cleaning plate to rotate to clean the dust on the outside of the dustproof net, so as to complete the cleaning of the larger particle dust accumulated on the outside of the dustproof net.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. In the present invention, the cleaning mechanism is provided to ensure the circulation of air around the sensor, and the dust with larger particle size can be automatically processed at relatively infrequent intervals. In addition, by introducing a dust accumulation error compensation algorithm, the influence of dust accumulation on temperature and humidity measurement can be effectively reduced, the accuracy of monitoring data can be improved, and the sensor can be linked with other mine safety monitoring systems to provide a more comprehensive environmental monitoring solution.

[0029] 2. In the present invention, the communication module designed by the system supports wireless and wired transmission, which increases the flexibility and applicability of the system and can adapt to different mine environments and monitoring requirements. In addition, the system has the function of dust accumulation detection and feedback, which can automatically alarm and trigger the cleaning mechanism when the dust accumulates to a certain extent, reducing the need for manual maintenance and improving the automation of the system. This self-learning and self-adaptive ability enables the system to continuously optimize performance, adapt to environmental changes, and extend the service life of the sensor;

[0030] 3. In the present invention, the data processing and compensation module adopted by the temperature and humidity monitoring system for mining adjusts the compensation model parameters in real time through the recursive least squares method or the Kalman filtering algorithm, thereby improving the response speed and compensation accuracy of the system, so that the system can provide compensation data quickly and accurately when facing the changes in the underground environment, thereby ensuring the accuracy of the monitoring results. The automatic cleaning and calibration function of the system further ensures the stability and reliability of the sensor during long-term operation, thus providing strong technical support for mine safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0033] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0034] Figure 4 For the present invention Figure 2 Schematic diagram of the structure at B in the middle;

[0035] Figure 5 The present invention is a flow chart of a mine temperature and humidity monitoring system and a monitoring method thereof.

[0036] In the figure: 1. Protective housing; 2. Communication module; 3. Connector; 4. Protective cover;

[0037] 5. Cleaning mechanism; 51. Rotating ring plate; 52. First bearing; 53. Connecting rod; 54. Cleaning plate; 55. Motor protection shell; 56. Second bearing; 57. Micro motor;

[0038] 6. Dustproof net. DETAILED DESCRIPTION

[0039] See also Figure 1-5 , the present invention provides a technical solution:

[0040] A mine temperature and humidity monitoring system and a monitoring method thereof, comprising a protective shell 1, a connector 3 and a protective cover 4, wherein the upper end of the protective shell 1 is fixedly connected with a communication module 2 for transmitting compensated temperature and humidity data to a ground monitoring center and supporting data linkage with other mine safety monitoring systems, a connector 3 is installed on the outer side of the protective shell 1, a protective cover 4 is installed on one side of the protective shell 1, a dustproof net 6 is installed on the inner side of one end of the protective cover 4, and a cleaning mechanism 5 is installed on the outer side of one end of the protective cover 4; the cleaning mechanism 5 comprises a rotating ring plate 51, the inner side of the rotating ring plate 51 is rotatably connected to the protective cover 4 through a first bearing 52, and one side of the rotating ring plate 51 is fixedly connected to a motor protection shell 55 through a connecting rod 53, and the connecting rod 53 is close to the motor protection shell 55. A cleaning plate 54 is fixedly connected to the end face of the near protective cover 4, the inner side of one end of the motor protective shell 55 is rotatably connected to the protective cover 4 through a second bearing 56, and the middle of the other end of the motor protective shell 55 is fixedly connected to the main shaft of the micro motor 57; temperature and humidity sensors for real-time monitoring of humidity and temperature data in the mine are installed inside the protective shell 1 and the protective cover 4, and the monitoring head of the temperature and humidity sensor is arranged between the dustproof nets 6, and a data processing module and a compensation module are installed inside the protective shell 1. The data processing module and the compensation module include a real-time data acquisition unit and a dust accumulation error compensation algorithm module for receiving the original data of the temperature and humidity sensor, and dynamically compensating according to the amount of dust accumulation, and outputting the compensated temperature and humidity data.

[0041] As a technical solution for further implementation of this solution, the dust accumulation error compensation algorithm module is used to compensate for the temperature and humidity measurement error caused by dust accumulation. The specific calculation formula is:

[0042] T comp (t) = T raw (t)-ΔT d (t)

[0043] H comp (t) = H raw (t)-ΔH d (t)

[0044] in,

[0045] Where: T comp (t) is the temperature after compensation, H comp (t) is the humidity after compensation, ΔT d (t) is the temperature error, ΔH d (t) is the humidity error, Di is the i-th dust accumulation sample, ΔT i , ΔH i is the temperature and humidity error corresponding to the i-th dust accumulation, is the average value of dust accumulation, are the average values ​​of temperature and humidity errors, ΔT Di =0 and ΔH Di =0 are the temperature and humidity errors measured under the condition of no dust accumulation.

[0046] As a technical solution for further implementation of this scheme, the accumulation of dust is calculated by a formula, and the specific formula is:

[0047] D(t)=D0·(1-e -kt )

[0048] Where: D(t) is the dust accumulation, D0 is the initial dust accumulation, k is the time constant. The dust accumulation can be calculated in a standard way through the above formula.

[0049] As a technical solution for further implementation of this solution, four connecting rods 53 are provided, and the connecting rods 53 are equidistantly distributed in a ring shape on the outside of one end of the protective cover 4, and the connecting rods 53 are parallel to each other. The protective cover 4 is cylindrical, and the vertical section of the motor protection shell 55 is U-shaped. The motor protection shell 55 and the micro motor 57 share the same axis. There are two dustproof nets 6, and the dustproof nets 6 are arranged in an arc shape. There are four cleaning plates 54, and the cleaning plates 54 correspond to the connecting rods 53 one by one. Through the above arrangement, the cleanliness of the dust particles with larger particle sizes on the outside of the dustproof net 6 can be further improved;

[0050] As a technical solution for further implementation of this solution, the communication module 2 supports both wireless transmission and wired transmission, and a signal line jack is provided on the communication module 2, and multiple communication methods can be applied to different needs;

[0051] As a technical solution for further implementation of this scheme, the system has the function of detecting and feedback of dust accumulation. When the accumulation reaches a preset threshold, the system automatically alarms and triggers the micro motor 57. Through the above settings, an automatic alarm can be performed to remind the staff to perform maintenance and automatic cleaning.

[0052] As a technical solution for further implementation of this scheme, the data processing and compensation module has a self-learning function, which can optimize the compensation algorithm through historical data, improve the compensation accuracy, and further improve the accuracy of the compensation data;

[0053] As a technical solution for further implementation of this scheme, the data processing and compensation module uses recursive least squares method or Kalman filter algorithm to adjust the compensation model parameters in real time to adapt to the changes in the underground environment. Through the above settings, the overall applicability of the system can be improved;

[0054] As a technical solution for further implementation of this scheme, the following steps are included: Step I: Data acquisition: The temperature and humidity sensor detects the underground temperature and humidity in real time through the protective housing 1 and the protective cover 4, and transmits the original data to the data processing and compensation module;

[0055] Step II: Calculation of dust accumulation: Calculate the dust accumulation in real time according to the installation time of the temperature and humidity sensor;

[0056] Step III: Error compensation algorithm: according to the calculated dust accumulation amount, the error amount is calculated in real time;

[0057] Step IV: Data transmission and display: The compensated temperature and humidity data are transmitted to the ground monitoring center through the communication module 2 and displayed in real time on the monitoring interface;

[0058] Step V: Automatic cleaning and calibration: When the dust accumulation reaches the set threshold, the system automatically starts and controls the micro motor 57 to drive the cleaning plate 54 to rotate, so as to clean the dust outside the dustproof net 6 and complete the cleaning of the larger particle dust accumulated on the outside of the dustproof net 6.

[0059] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A temperature and humidity monitoring system for a mine, comprising a protective housing (1), a connecting piece (3) and a protective cover (4), characterized in that: The upper end of the protective shell (1) is fixedly connected with a communication module (2) for transmitting compensated temperature and humidity data to a ground monitoring center and supporting data linkage with other mine safety monitoring systems; a connector (3) is installed on the outer side of the protective shell (1); a protective cover (4) is installed on one side of the protective shell (1); a dustproof net (6) is installed on the inner side of one end of the protective cover (4); and a cleaning mechanism (5) is installed on the outer side of one end of the protective cover (4); The cleaning mechanism (5) comprises a rotating ring plate (51), the inner side of the rotating ring plate (51) is rotatably connected to the protective cover (4) via a first bearing (52), one side of the rotating ring plate (51) is fixedly connected to a motor protective cover (55) via a connecting rod (53), the end surface of the connecting rod (53) close to the protective cover (4) is fixedly connected to a cleaning plate (54), the inner side of one end of the motor protective cover (55) is rotatably connected to the protective cover (4) via a second bearing (56), and the middle of the other end of the motor protective cover (55) is fixedly connected to the main shaft of a micro motor (57); A temperature and humidity sensor for real-time monitoring of humidity and temperature data in a mine is installed inside the protective housing (1) and the protective cover (4), and a monitoring head of the temperature and humidity sensor is arranged between the dustproof nets (6). A data processing module and a compensation module are installed inside the protective housing (1). The data processing module and the compensation module include a real-time data acquisition unit and a dust accumulation error compensation algorithm module for receiving raw data from the temperature and humidity sensor, performing dynamic compensation according to the amount of dust accumulation, and outputting compensated temperature and humidity data.

2. A mine temperature and humidity monitoring system according to claim 1, characterized in that: The dust accumulation error compensation algorithm module is used to compensate for the temperature and humidity measurement error caused by dust accumulation. The specific calculation formula is: T comp (t)=T row (t)-ΔT d (t) H comp (t)=H raw (t)-ΔH d (t) in, Where: T comp (t) is the temperature after compensation, H comp (t) is the humidity after compensation, ΔT d (t) is the temperature error, ΔH d (t) is the humidity error, Di is the i-th dust accumulation sample, ΔT i , ΔH i is the temperature and humidity error corresponding to the i-th dust accumulation, is the average value of dust accumulation, are the average values ​​of temperature and humidity errors, ΔT Di =0 and ΔH Di =0 are the temperature and humidity errors measured under the condition of no dust accumulation.

3. A mine temperature and humidity monitoring system according to claim 1, characterized in that: The accumulation of dust is calculated by a formula, and the specific formula is: D(t)=D0·(1-e -kt ) Where: D(t) is the amount of dust accumulation, D0 is the initial dust accumulation, and k is the time constant.

4. A mine temperature and humidity monitoring system according to claim 1, characterized in that: Four connecting rods (53) are provided. The connecting rods (53) are distributed in a circular shape and are equidistantly outside one end of the protective cover (4). The connecting rods (53) are parallel to each other. The protective cover (4) is cylindrical. The vertical section of the motor protective shell (55) is U-shaped. The motor protective shell (55) and the micro motor (57) share the same axis.

5. A mine temperature and humidity monitoring system according to claim 1, characterized in that: There are two dustproof nets (6) arranged in an arc shape, and there are four cleaning plates (54) arranged in a one-to-one correspondence between the cleaning plates (54) and the connecting rods (53).

6. A mine temperature and humidity monitoring system according to claim 1, characterized in that: The communication module (2) supports both wireless transmission and wired transmission, and a signal line jack is provided on the communication module (2).

7. A mine temperature and humidity monitoring system according to claim 1, characterized in that: The system has the function of detecting and providing feedback on the amount of dust accumulation. When the amount of accumulation reaches a preset threshold, the system automatically alarms and triggers the micro motor (57).

8. A mine temperature and humidity monitoring system according to claim 1, characterized in that: The data processing and compensation module has a self-learning function and can optimize the compensation algorithm through historical data to improve the compensation accuracy.

9. A mine temperature and humidity monitoring system according to claim 1, characterized in that: The data processing and compensation module uses a recursive least squares method or a Kalman filter algorithm to adjust the compensation model parameters in real time to adapt to changes in the underground environment.

10. A monitoring method for a temperature and humidity monitoring system for a mine according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step I: Data acquisition: The temperature and humidity sensor detects the underground temperature and humidity in real time through the protective housing (1) and the protective cover (4), and transmits the original data to the data processing and compensation module; Step II: Calculation of dust accumulation: Calculate the dust accumulation in real time according to the installation time of the temperature and humidity sensor; Step III: Error compensation algorithm: according to the calculated dust accumulation amount, the error amount is calculated in real time; Step IV: Data transmission and display: The compensated temperature and humidity data are transmitted to the ground monitoring center through the communication module (2) and displayed in real time on the monitoring interface; Step V: Automatic cleaning and calibration: When the dust accumulation reaches a set threshold, the system automatically starts and controls the micro motor (57) to drive the cleaning plate (54) to rotate, so as to clean the dust outside the dustproof net (6) and complete the cleaning of the larger particle size dust accumulated outside the dustproof net (6).

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