CN104763463B - Intelligent personal safety system for underground coal mine - Google Patents

Abstract

The invention discloses an underground coal mine intelligent personal safety system, which comprises a human body life state detection and identification unit, an underground coal mine real-time environment parameter acquisition and analysis unit, a non-real-time voice communication unit and an underground communication unit, wherein the underground coal mine intelligent personal safety system comprises a human body life state detection and identification unit, a coal mine underground real-time environment parameter acquisition and analysis unit, a non-real-time voice communication unit: the system comprises a human body life state detection and identification unit, a coal mine underground real-time environment parameter acquisition and analysis unit, a non-real-time voice communication unit and a Mesh-based underground communication unit, wherein the human body life state detection and identification unit is used for realizing real-time detection of human body temperature, heart rate and respiration and transmitting acquired data to a microcontroller; the invention can realize the real-time monitoring of the life state of the body of the underground rescue and the working personnel, carry out the real-time identification of the health state of the working personnel and ensure the health of the working personnel in the process of rescue and working.

Description

A Coal Mine Underground Intelligent Personal Safety System

technical field

The invention relates to a coal mine underground intelligent personal safety system.

Background technique

As the country pays more and more attention to safety production, coal mine safety production equipment will have a wider market demand. According to market research, there are very few platforms on the market for collecting and analyzing personal safety information underground. At present, a large number of underground personnel positioning systems on the market have defects such as single function, small amount of information, and inaccurate data. In addition to all the functions of the current underground safety system, this system can also provide various information resources such as vital sign status and underground environment required under abnormal conditions, as well as a variety of reliable and flexible data communication methods, so as to provide safety Production provides decision support.

Contents of the invention

In order to solve the above problems, the present invention proposes an intelligent personal safety system for underground coal mines. This system utilizes Internet of Things technology, intelligent sensing and pattern recognition technology, which can not only detect the environmental parameters of rescuers but also rescue The physical condition of the personnel is detected in real time, so as to ensure the personal safety of the rescuers during the entire rescue process.

In order to achieve the above object, the present invention adopts the following technical solutions:

An intelligent personal safety system for underground coal mines, including a detection and identification unit for human life status, a real-time environmental parameter collection and analysis unit for underground coal mines, a non-real-time voice communication unit, and an underground communication unit, wherein:

The detection and identification unit of the human life state is used to realize the real-time detection of the body temperature, heart rate and respiration of the human body, and transmit the collected data to the microcontroller;

The coal mine underground real-time environmental parameter collection and analysis unit is used for real-time collection of CO, CH ₄ and O ₂ parameters of the environment where rescuers and persons in distress are located, and transmits them to the microcontroller;

The non-real-time voice communication unit is used to realize the voice communication between the command personnel on the well and the trapped personnel in the mine under emergency conditions, and transmit the voice communication signals through the wireless sensor ad hoc network;

The downhole communication unit builds a downhole communication system with dual redundancy features based on Mesh, utilizes the existing downhole Ethernet, and hangs a wireless base station with bridging function every set distance downhole;

The microcontroller transmits the collected data to the uphole console through the downhole communication unit for data display and backup.

The detection and identification unit of the human life state is based on Bluetooth 4.0 to build a wireless sensor network, including a respiratory information acquisition module, a heart rate acquisition module and a temperature sensor, to realize real-time detection of respiration, heart rate and body temperature; wherein the collection of body temperature and respiration data Share a Bluetooth module, the heart rate acquisition module is placed on the chest to collect heart rate signals, and the temperature sensor collects body temperature.

The breathing information collection module is placed in the rescuer's ventilator to detect pressure changes, and the number of breaths per minute and the intensity of breathing are obtained; the collected information is sent to the control center built by the microcontroller, and the microcontroller uses Zigbee The built dual redundant downhole communication system transmits the collected data to the uphole console for data display and backup.

The breathing information collection module is placed in the rescuer's ventilator to detect pressure changes, and the number of breaths per minute and the intensity of breathing are obtained; the collected information is sent to the control center built by the microcontroller, and the microcontroller uses Zigbee A wireless base station with bridging function is formed, and a Mesh-based dual-redundancy downhole communication system is built in conjunction with the existing underground Ethernet, and the collected data is transmitted to the uphole console for data display and backup.

The coal mine underground real-time environmental parameter acquisition and analysis unit is to use a microcontroller to collect real _- time CO, _CH and O parameters of the environment where rescuers and people in distress are located, and the collected information is given to the microcontroller through Zigbee. The communication system sends to the monitoring system on the well.

The non-real-time voice communication unit realizes the voice communication between the above-ground commander and the underground trapped personnel in an emergency; the voice communication signal is transmitted through the wireless sensor ad hoc network, and the voice information of the personnel is collected through a miniature microphone and an earphone , and then compress and package the information, and conduct non-real-time communication with the outside world through the wireless sensor network.

The non-real-time voice communication unit is provided with a manual alarm button, in case underground workers manually alarm to the command center under special circumstances.

The underground communication unit hangs a wireless base station with a bridging function at intervals underground, and each wireless base station is responsible for receiving the environmental information collected by the wearable personal information platform in the vicinity of the base station and the vital sign information of the miners, It is then sent to the ground information system through a wired link.

In the downhole communication unit, when a local wired network fails or is destroyed, the wireless base station at the damaged location can automatically detect that the wired link fails, and automatically switch to the wireless transmission working mode, and communicate with the wireless network through the wireless redundant network. The nearest wireless base station communicates wirelessly; the undamaged wired link still adopts wired communication.

The beneficial effects of the present invention are:

(1) The present invention can realize downhole rescue and real-time monitoring of the vital state of the staff, and the data is sent to the operation platform on the well, and the professionals on the well can identify the health status of the staff in real time, which can ensure that the staff is in rescue and work health in process;

(2) It can realize the necessary collection of key parameters of the environment, and analyze, evaluate and warn the current risk;

(3) The present invention can also realize that when the local wired network breaks down or is destroyed, the system can still send the vital state parameters and environmental parameters of the human body to the well operation console in a wireless manner.

Description of drawings

Figure 1 is a functional schematic diagram of the downhole intelligent safety system;

Fig. 2 is a block diagram of an environmental parameter collection module;

Fig. 3 is a block diagram of non-real-time voice communication system;

Figure 4 is an overall block diagram of the personal security system.

detailed description:

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 shows the functional schematic diagram of the downhole intelligent safety system of the present invention. The invention utilizes the Internet of Things technology, intelligent sensing and pattern recognition technology to develop an intelligent personal wearable safety system for underground coal mines. The system consists of three parts: a wearable personal information collection device, an underground communication system with dual redundancy features, and a personal information processing center. The wearable personal information collection device is mainly used for the collection and processing of relevant information such as vital sign parameters and exercise status of underground personnel and environmental parameters such as CO, CH4, O2, and provides non-real-time voice communication in emergency situations. The system adopts a modular design, in which respiratory sensors, ECG signal sensors, environmental parameter sensors, etc. can be used as optional modules. The dual-redundant downhole communication system is based on the network architecture with underground Ethernet as the backbone, and based on the heterogeneous network element IoT system model to build an open IoT system that supports heterogeneous heterogeneous data protocols. The test realizes the intelligent switching of wired and wireless modes and the reconstruction of hybrid network links in emergency situations. The personal information processing center analyzes, processes and stores the information collected by the wearable personal information device, and gives an alarm reminder when necessary.

Figure 2 shows the block diagram of the environmental parameter acquisition module. At present, the distributed acquisition and alarm system of the downhole gas environment is relatively mature. Generally, the parameter collection of the downhole environment is realized by installing fixed detection devices at corresponding positions in the downhole and manual inspection. However, once an emergency occurs, the fixed detection equipment often fails due to underground power failure or damage, and manual inspection is also difficult. At this time, it is very necessary for people in distress underground to be able to collect necessary key parameters of the environment, and to analyze, evaluate and give early warning of the current danger. Low-cost gas sensors are used to collect parameters such as CO, CH4, and O2 in the environment where people in distress are located. By establishing an underground environmental risk assessment model, various data of environmental parameters are processed and analyzed to obtain an assessment of the underground environmental risk. , when the environmental parameters reach a dangerous level, the system will automatically send an alarm message to the command center and prompt the miners to take corresponding measures through LED lights or buzzers.

Figure 3 shows a block diagram of the non-real-time voice communication system. The non-real-time voice communication system is mainly to realize the voice communication between the commander on the mine and the trapped personnel in the mine in an emergency. Since most of the underground wired transmission systems will be in a state of paralysis after the mining disaster occurs, it is difficult to guarantee the availability of the network, so this system chooses to transmit voice communication signals through wireless sensor ad hoc network. Because the bandwidth of the wireless sensor network is very limited, especially in emergency situations, it is difficult to effectively guarantee the large amount of redundant bandwidth in the network, so we use a non-real-time voice communication system. It collects the important and brief voice information of personnel through the miniature microphone and earphone embedded in the miner's hat wall, and then compresses and packages the information and stores it in the TF card, and communicates with the outside world through the wireless sensor network in non-real time. In addition, by designing a manual alarm button, underground staff can manually alarm to the command center in case of special circumstances.

Figure 4 shows the overall block diagram of the personal security system. The entire intelligent security system mainly includes the data acquisition part and the network part. The data collection part includes the collection of environmental parameters, the collection of human physiological parameters, and the collection of voice information. Among them, the environmental information collection is mainly read by the STM32 controller directly through the UART and single bus interface; the human physiological information is collected by a separate processor, and transmitted to the STM32 controller through Bluetooth; the voice information is directly read by the STM32 controller using the SPI interface, The data is directly stored in the TF card. After all the information is integrated on the STM32, it is sent to the Zigbee network through the UART interface, and the information enters the Ethernet through the Zigbee network. There is a local client in Inoue to monitor the data, and the information can also be transmitted to the remote user through the network server. Users on the Internet can view the situation of underground rescuers through corresponding authority verification.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.

Claims (3)

1. a kind of underground coal mine intelligent personal security system, it is characterized in that：Detection including human life state is single with identification Unit, underground coal mine real time environment parameter acquisition and analytic unit, non-real time voice communication unit and underground communica tion unit, wherein： The detection of the human life state and recognition unit, for realizing the real-time detection to body temperature, heart rate and breathing, will adopt The data for collecting are transferred to microcontroller；The underground coal mine real time environment parameter acquisition and analytic unit, for Real-time Collection The parameter of CO, CH4 and O 2 of environment, is transmitted to microcontroller where rescue and distress personnel；The non-real time voice Communication unit, realizes that emergency is gone into the well the voice communication of upper commanding and down-hole trapped personnel；Selection passes through wireless sensing MANET transmits speech communication signal, by miniature Mike and earphone the voice messaging of personnel is acquired, then will letter Breath compression packing, non real-time communication is carried out by wireless sensor network and the external world；The underground communica tion unit, is based on Mesh is built with dual redundant feature, using the existing Ethernet in underground, is hung one every setpoint distance in underground and is possessed bridge The wireless base station of connection function；The microcontroller is sent to console on well by the data that underground communica tion unit will be collected Carry out data display and backup；

The detection of the human life state and recognition unit build wireless sensor network, including respiration information acquisition module, Heart rate acquisition module and temperature sensor, realize the real-time detection to breathing, heart rate and body temperature；Wherein body temperature and breathing The collection of data shares a bluetooth module, and heart rate acquisition module is placed into chest and carries out the collection of heart rate signal, TEMP Device gathers body temperature；

The respiration information acquisition module is placed into the change of detection pressure in the lung ventilator of rescue personnel, draws breathing per minute Number of times and breathing intensity；The information of collection is all transmitted to the control centre that microcontroller is built, microcontroller application The data that the dual redundant underground communication system that Zigbee builds will be collected are sent to console on well and carry out data display and standby Part；Microcontroller application Zigbee compositions possess the wireless base station of bridging functionality, are built with the existing Ethernet in underground and are based on The dual redundant underground communication system of Mesh, the data that will be collected are sent to console on well and carry out data display and backup；

The underground communica tion unit, a wireless base station for possessing bridging functionality, each nothing are hung in underground every a segment distance It is responsible for receiving the environmental information that collects of wearable personal information platform of the base station close region and the life of miner in line base station Sign information, is then sent to Ground Information System by wire link；

The underground communica tion unit, when local cable network breaks down or is destroyed, is destroyed the wireless base station at place Can be broken down to wire link with Auto-Sensing, and automatically switch to wireless transmission mode of operation, by redundant wireless network Wireless communication mode is taken with nearest wireless base station；The mode of wire communication is not taken at destroyed wire link still.

2. a kind of underground coal mine intelligent personal security system as described in claim 1, it is characterized in that：The underground coal mine Real time environment parameter acquisition and analytic unit be using the rescue of microcontroller Real-time Collection and distress personnel place environment CO, CH4 and O2 parameters, the information for collecting is sent to microcontroller by the dual redundant underground communication system that Zigbee builds Monitoring system on to well.

3. a kind of underground coal mine intelligent personal security system as described in claim 1, it is characterized in that：：The non real-time language Sound communication unit is provided with artificial alarm button, in case in particular cases underground work personnel are to command centre's manual alarm.