CN107296596A - The staff's fatigue monitoring system and method for a kind of underground coal mine - Google Patents

Abstract

The invention discloses a staff fatigue monitoring system and method in a coal mine, including a wearing part, a personnel operating equipment part, a personnel terminal part and a signal terminal processing part, and the personnel wearing part includes an explosion-proof rubber-wrapped eego ^TM mylab full mobile EEG safety helmet, explosion-proof glass frame Tobii Glasses2 portable eye tracker, plainclothes wristband multi-conductor physiological instrument, explosion-proof rubber pressure test insole, the present invention adds explosion-proof rubber to isolate external interference from the structural design, and enhances the The anti-interference ability and monitoring application range of the monitoring equipment can reduce the use of raw materials in terms of production and reduce part of the production cost of dry electrodes. control, and the use of the present invention can replace the supervising and supervising role of supervisors on the fatigue state of production personnel.

Description

A system and method for monitoring fatigue of underground coal mine workers

technical field

The invention relates to the technical field of fatigue monitoring, in particular to a system and method for monitoring the fatigue of workers in underground coal mines.

Background technique

The underground geological conditions of coal mines are complex, and there are various types of large equipment and mobile vehicles. During normal work, the underground personnel are exposed to harsh environments and low visibility. Changes in the environment are likely to cause fatigue and production conditions for the staff. Operation errors often occur due to excessive fatigue, resulting in equipment injury accidents. This has caused great potential safety hazard to the personal safety of underground staff. Therefore, it is necessary to add a set of personnel fatigue monitoring equipment and system on the basis of the existing downhole equipment to detect the fatigue status of the staff in a certain range underground. When the staff is working in this area, the monitored If the physiological and psychological signals of the personnel are abnormal, the system can automatically send different levels of early warning signals to the staff. When the monitoring signal deviates abnormally, the system can control the equipment operated by the staff to stop working forcibly, so as to avoid accidents.

In the existing technology, there are many kinds of personnel fatigue monitoring equipment, such as fatigue monitoring bracelets, fatigue monitoring caps, etc. These published patents and related research mainly focus on the monitoring of different types of physiological signals of the human body, and the monitoring results of different types of physiological signals , to evaluate the fatigue level of personnel within a certain range, so as to achieve the purpose of fatigue monitoring. However, due to the poor anti-interference ability, poor explosion-proof function and improper relative positional relationship between the monitoring personnel and the equipment during the fatigue monitoring process of this kind of product, this kind of product can only be carried out in a conventional environment and a limited distance, and cannot pass the monitoring signal. The abnormal level controls the start and stop of mobile equipment, so that the purpose of detecting and controlling the fatigue level of underground workers cannot be achieved.

Contents of the invention

The object of the present invention is to provide an underground coal mine staff fatigue monitoring system and method to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a staff fatigue monitoring system in a coal mine, including a wearing part, a personnel operating equipment part, a personnel terminal part and a signal terminal processing part, and the personnel wearing part includes an explosion-proof rubber package eego ^TM mylab fully mobile EEG safety helmet, explosion-proof glass frame TobiiGlasses2 portable eye tracker, plain clothes wristband-type polyconductor physiological instrument and explosion-proof rubber pressure test insole.

The personnel operating equipment part includes a timing panel, an acoustic alarm unit, operating equipment and an automatic control stop switch, and the timing panel, the sound alarm unit and the automatic control stop switch are respectively installed on the body of the personnel operating equipment in the underground mine around.

The personnel terminal part includes a personnel working area including a signal collection terminal and a signal transmission node. The personnel terminal part adopts a signal transmission antenna, and the signal transmission antennas are arranged at the battery of the personnel operation equipment.

The signal terminal processing part includes a central terminal processor and decision-making control software for personnel fatigue feature recognition.

Preferably, the monitoring system is arranged around frequently-operated equipment in the coal mine, and the frequently-operated equipment is a continuous miner, a bolter, a coal shearer, and the like.

Preferably, the staff fatigue monitoring method in the coal mine includes a staff fatigue signal collection method, a regional staff fatigue signal identification method, and a decision-making control method.

The specific method steps are as follows:

(1) Collect signals of physiological and psychological levels such as EEG signals, ECG signals, psychological interest levels, blood speed, blood pressure, heart rate, skin temperature, myoelectric signals, eyelid closing frequency, and pupil size changes of underground workers ;

(2) The decision-making control software for personnel fatigue feature recognition automatically fuses and analyzes the signals to determine whether the monitored staff is in a fatigue state;

(3) When the state of the monitored staff is slightly fatigued, the central processing unit returns the signal to the sound alarm unit of the monitored staff to remind the staff to adjust their own state;

(4) The state of the staff is generally fatigued, and the central processing unit transmits the signal to the sound alarm unit of the team leader, prompting the team leader to change the monitoring staff to change shifts;

(5) The state of the staff is very fatigued, and the central processing unit returns the signal to the start-stop equipment of the monitored staff to forcibly stop operating the equipment;

(6) The status of the staff is normal, and the system has no action.

Compared with the prior art, the beneficial effect of the present invention is: in terms of structural design, all monitoring equipment adopts hidden design, and the signal collectors of all test signals are hidden and designed inside the work clothes and protective equipment, which can make the tested personnel Increased range of motion and easier mobility. At the same time, all equipment is designed with the concept of explosion-proof, adding explosion-proof rubber to isolate external interference, and enhancing the anti-interference ability and monitoring application range of monitoring equipment. In terms of production, since the design of the dry electrode sheet used for signal acquisition is reduced, the use of raw materials can be reduced in the equipment manufacturing stage, and part of the production cost of the dry electrode sheet can be reduced. From the aspect of energy consumption, due to the various downhole equipment, the power supply of many electrified equipment can provide a certain source of electric energy for the present invention. Prevent underground equipment from robbing electricity and wasting electricity. In terms of process savings, in the past, the monitoring instruments and equipment were huge and there were many installation procedures, but the production process of the fatigue monitoring equipment for underground workers has reduced the production process of the equipment transmission line. Save time from the process. In terms of efficiency, it can effectively monitor the fatigue state of personnel. Reminding staff and control personnel through signals can reduce the probability of accidents caused by fatigue production. From the aspect of operation, in the past, there was a supervisory team to supervise and control the production personnel in the production of underground personnel, but the use of the present invention can replace the supervisory personnel's role in supervising the fatigue state of the production personnel.

Description of drawings

Fig. 1 is a system structure block diagram of the present invention;

Fig. 2 is a flow chart of the method of the present invention.

In the figure: 1-wearing part, 11-explosion-proof rubber-wrapped eego ^TM mylab full mobile EEG safety helmet, 12-explosion-proof glass frame Tobii Glasses2 portable eye tracker, 13-plain clothes wristband type multi-conductor physiological instrument, 14- Explosion-proof rubber pressure test insole, 2-personnel operation equipment part, 21-timing panel, 22-sound alarm unit, 23-operation equipment, 24-automatic control stop switch, 3-personnel terminal part, 31-signal collection terminal, 32- Information transmission node, 4-signal terminal processing part, 41-central processing unit, 42-decision-making control software for personnel fatigue feature recognition.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1-2, the present invention provides a kind of technical scheme: 1. A kind of staff fatigue monitoring system under the coal mine, comprises wearing part 1, personnel operation equipment part 2, personnel terminal part 3 and signal terminal processing part 4, The wearable part of the personnel includes an explosion-proof rubber-wrapped eego ^TM mylab full-mobile EEG safety helmet 11, an explosion-proof glass frame TobiiGlasses2 portable eye tracker 12, a plainclothes wristband-type polyconductor physiological instrument 13, and an explosion-proof rubber pressure test insole 14. Various physiological data of the monitored workers.

The personnel operating equipment part includes a timing panel 21, an acoustic alarm unit 22, operating equipment and an automatic control stop switch 23, and the timing panel, the acoustic alarm unit and the automatic control stop switch are respectively installed in the underground station for the personnel to operate. Around the equipment body, the sound alarm unit can remind the monitored staff, and the automatic control switch can control the stop and operation of the personnel operating the equipment.

The personnel terminal part includes a personnel working area including a signal collection terminal 31 and a signal transmission node 32. The personnel terminal part adopts a signal transmission antenna, and information is transmitted to the information terminal processing part through the signal transmission node. The signal transmission antennas are all arranged in Where personnel operate the equipment's battery.

The signal terminal processing part includes a central terminal processor 41 and a decision-making control software 42 for identifying fatigue characteristics of personnel.

Specifically, the monitoring system is arranged around frequently-operated equipment in underground coal mines, such as continuous miners, bolters, and coal shearers.

Specifically, the method for monitoring staff fatigue in underground coal mines includes a staff fatigue signal collection method, a regional staff fatigue signal identification method, and a decision-making control method.

The specific method steps are as follows:

(1) Collect signals of physiological and psychological levels such as EEG signals, ECG signals, psychological interest levels, blood speed, blood pressure, heart rate, skin temperature, myoelectric signals, eyelid closing frequency, and pupil size changes of underground workers , using the signal transmission node to transmit the collected physiological signals of the staff to the central terminal processor in the central monitoring room through the integrated signal antenna;

(2) The decision-making control software for personnel fatigue feature recognition automatically fuses and analyzes the signals to determine whether the monitored staff is in a fatigue state, and transmits the signal to the computer through the central terminal processor to open the decision-making control of the personnel fatigue feature recognition The software automatically integrates and analyzes the signals to determine whether the monitored staff is in a state of fatigue;

(3) The status of the monitoring staff is slightly fatigued. When the monitoring staff’s ECG signal, psychological interest level, blood velocity, blood pressure, heart rate, skin temperature, electromyographic signal, eyelid closure frequency, and pupil size change range are all within a certain range. When the normal interval is within a small deviation range, the central processing unit will return the signal to the sound alarm unit of the monitored staff to remind the staff to adjust their own state;

(4) The monitoring staff is in a general fatigue state. When the monitoring staff’s ECG signal, psychological interest level, blood velocity, blood pressure, heart rate, skin temperature, electromyographic signal, eyelid closure frequency, and pupil size change range are all within a certain range. When the normal interval is within a small deviation range, the central processor will send the signal to the team leader’s sound alarm unit, prompting the team leader to change the monitoring staff to change shifts;

(5) The status of the monitoring staff is very fatigued. When the monitored staff’s ECG signal, psychological interest level, blood velocity, blood pressure, heart rate, skin temperature, electromyographic signal, eyelid closing frequency, and pupil size change range are all in a non-existent state. In the normal range but in the middle range of the deviation, the central processor will return the signal to the start-stop equipment of the monitored staff to force the operation of the equipment to stop;

(6) The status of the monitoring staff is normal. When the monitored staff’s ECG signal, psychological interest level, blood velocity, blood pressure, heart rate, skin temperature, electromyographic signal, eyelid closure frequency, and pupil size change range are abnormal The system does not act when it is in the range but in a large deviation range.

Working principle: In the present invention, signal transmission areas and signal acquisition anchor points are added around the underground roadway. Install an acoustic alarm at the machine body operated by underground personnel. The integrated antenna uses ultra-wideband technology. That is, UWB carrier-free communication technology, which uses nanosecond (ns) to picosecond (ps) level non-sine wave narrow pulse transmission to transmit physiological signal data, with high transmission speed and low power consumption. And has accurate signal recognition ability.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (3)

1. a kind of staff's fatigue monitoring system of underground coal mine, including wearing portion (1), human users' environment division (2), Staff terminal part (3) and Signal Terminal process part (4), it is characterised in that：The persons wear part (1) includes explosion-proof rubber Glue packaging type eego^TMMylab moves electroencephalograph safety cap (11), implosion guard picture frame Tobii Glasses2 Portable eyes and moved entirely Physiograph (13) and explosion-proof rubber pressure test shoe-pad (14) are led instrument (12), plain clothes Wrist belt-type more.

Human users' equipment portion (2) point includes timing panel (21), acoustic alarm unit (22), operation equipment (23) and automatically Guard's valve (24) is controlled, the timing panel (21) and the acoustic alarm unit (22) and the automatic control guard's valve (24) are respectively It is installed on around job position operation equipment (23) fuselage of underground.

The staff terminal part (3), which includes person works area, includes signal collection terminal (31) and signal transmission node (32), The staff terminal part (3) uses signal transmitting antenna, and the antenna signal transmission is arranged in human users' equipment (23) Battery at.

The Signal Terminal process part (4) includes the Decision Control that central terminal processor (41) and personnel's fatigue characteristic are recognized Software (42).

2. a kind of staff's fatigue monitoring system of underground coal mine according to claim 1, it is characterised in that：The prison Examining system is arranged in around the equipment of underground coal mine frequent operation, and the equipment of the frequent operation is continuous milling machine, roof-bolter and adopted Coal machine etc..

3. a kind of monitoring method of staff's fatigue monitoring system of underground coal mine according to claim 1, its feature It is：Staff's fatigue monitoring method of the underground coal mine includes the tired signal acquisition method of personnel, area people fatigue Signal recognition method, Decision Control method.

Specific method step is as follows：

(1) collect the EEG signals of underground work personnel, electrocardiosignal, psychological interest level, blood speed, blood pressure, heart rate, Pi Wen, The signal of the physiology and reaction mental level such as electromyographic signal, eyelid closure frequency, pupil size amplitude of variation；

(2) the Decision Control software of personnel's fatigue characteristic identification judges monitored work people to the automatic fusion of signal and analysis Whether member is fatigue state；

(3) staff's state is slight fatigue state, and signal is back to the sound report of monitored staff by central processing unit Alert unit, reminds the staff to adjust oneself state；

(4) staff's state is general fatigue state, and central processing unit is transmitted signals at class monitor and group leader's acoustic alarm unit, carried Show that class monitor and group leader exchanges monitoring personnel changing shifts；

(5) staff's state is very fatigue state, and signal is back to the start and stop of monitored staff by central processing unit In equipment, pressure stops operation equipment；

(6) staff's state is normal condition, system attonity.