CN203466977U - Coal mine staff life security management system based on RFID and ZigBee wireless sensor network - Google Patents

Abstract

The utility model relates to a life safety management system for coal mine personnel based on RFID and zigbee wireless sensor network, which is characterized in that it includes a monitoring center, mine mouth terminal equipment, at least one zigbee base station, at least two sensor nodes and at least one personnel node; Each sensor node has a first temperature sensor and a gas sensor; each personnel node has a second pressure reduction module and a body temperature sensor. The remarkable effect of the utility model is: the sensor node can identify the personnel node faster, can detect the ambient temperature and the concentration of toxic gas at any time, locate the personnel, and immediately alarm when an accident occurs, and let the vibration module of the personnel node vibrate to notify the underground work personnel, and detect the signs of life of underground workers through body temperature sensors.

Description

Coal mine personnel life safety management system based on RFID and zigbee wireless sensor network

technical field

The utility model relates to the field of coal mine personnel safety management, in particular to a life safety management system for coal mine personnel based on RFID and zigbee wireless sensor networks.

Background technique

my country is a big country of coal production and consumption, and the safety production of coal mines has always been concerned. At present, due to the country's increasing emphasis on coal mine safety and the continuous strengthening of supervision, large and medium-sized coal mines have been equipped with a large number of coal mine safety monitoring systems, which has curbed the occurrence of major accidents to a certain extent. However, due to the lack of monitoring of the location information of underground personnel, it is still difficult to manage the underground personnel, and it is difficult for the above-ground personnel to grasp the distribution and operation of the underground personnel in a timely and accurate manner. Realizing the effective management, detection, tracking and positioning of personnel entering the well is of great significance to the safety production, dispatching and commanding of coal mines, and emergency rescue after accidents.

Due to the particularity of the coal mine industry, it is generally difficult to manage the underground personnel at present. It is difficult for the above-ground personnel to grasp the dynamic distribution and operating conditions of the underground personnel in a timely manner. Once an accident occurs, the life signs of the underground personnel cannot be quickly known, and the lack of reliable information delays the rescue time. The efficiency of emergency rescue and disaster relief and safety rescue is low, and the effect is not ideal. In addition, the underground working environment of the coal mine is noisy. Even if an accidental sound and light alarm occurs, the underground personnel may not be able to hear or see it.

The disadvantages of the existing technology are: the speed of sensor nodes to identify workers is not fast enough, the detection range is small, and the stability of transmission signals is not high.

Utility model content

In order to solve the above problems, the utility model proposes a sensor node with fast recognition speed, which can recognize the signal of underground employees, detect the ambient temperature and the concentration of toxic gas at any time, and regularly detect the body temperature of underground employees after distress. A coal mine based on RFID and zigbee wireless sensor network Personnel life safety management system.

In order to achieve the above object, the concrete technical scheme adopted in the utility model is as follows:

A life safety management system for coal mine personnel based on RFID and zigbee wireless sensor network, including a monitoring center, minehead terminal equipment, at least 1 zigbee base station, at least 2 sensor nodes and at least one personnel node; monitoring center and minehead terminal equipment By wirelessly exchanging signals, the serial port module of the third wireless communication module of the mine mouth terminal equipment and the fourth serial port module of the zigbee base station perform signal transmission, and the fourth zigbee wireless transceiver module of the zigbee base station and the first zigbee wireless transceiver module of the sensor node perform signal transmission. Wireless signal transmission, the terminal equipment at the mine mouth is equipped with a third wireless communication module to obtain the interaction signal sent by the second RFID module of the personnel node through the antenna, the first RFID module of each sensor node and the second RFID module of each personnel node through the antenna For interactive signals, each sensor node has a first temperature sensor and a gas sensor; each personnel node has a second pressure reduction module and a body temperature sensor.

The monitoring center performs real-time acquisition and control of the underground situation, and the terminal equipment at the mine mouth performs control operations and receives signals transmitted by various sensor nodes in the mine. signal of. The personnel node and the sensor node carry out signal transmission. When there is a danger, the body temperature sensor on the personnel node starts to detect the body temperature regularly. The serial port module of the third wireless communication module of the mine mouth terminal equipment and the fourth serial port module of the zigbee base station perform signal transmission. The signal transmission between the mine mouth terminal equipment and the zigbee base station is mainly for operating and receiving the signals collected by the sensor nodes. The fourth zigbee wireless transceiver module forms a sensor node information collection point in the mine, and the terminal equipment at the mine mouth is equipped with a third wireless communication module to obtain the interactive signal sent by the second RFID module of the personnel node through the antenna, which is mainly used for the sign-in and registration of employees entering the mine. Attendance, the first RFID module of each sensor node and the second RFID module of each personnel node exchange signals through the antenna, mainly used to complete the location record of employees within the coverage area of each sensor, alarm signal transmission, each sensor node The first temperature sensor on the device is used to collect the ambient temperature, and the gas sensor is used to collect the content of combustible and harmful gases; the second voltage drop module of each personnel node is used to supply power to the body temperature sensor and the second RFID module, and the body temperature sensor is used to After receiving the detection notification signal, the temperature detection is carried out, and the signal is sent back to inform the staff on the well of the temperature of the person under test.

A further technical solution is that the personnel node includes a second microprocessor, and the second microprocessor is respectively connected with a vibration motor, a second memory, a second RFID module, a body temperature sensor and a second pressure reduction module.

The vibration motor is used to issue vibration warnings, the second memory is used to store data, the second RFID module is used to exchange data with sensor nodes and mine head terminal equipment, the body temperature sensor is used to detect the body temperature of underground workers, and the second step-down The module provides power supply for the second microprocessor, the vibration motor, the second memory, the second RFID module and the body temperature sensor, and improves the transmission distance and identification accuracy of the second RFID module.

A further technical solution is that the personnel node also includes a helmet body, a miner's lamp is arranged on the helmet body, and a second step-down module is connected to the power supply circuit of the miner's lamp, and the power supply is passed through the second step-down module for the second microprocessor, The vibration motor, the second memory, the second RFID module and the body temperature sensor are powered.

The personnel node is a kind of safety helmet. The vibration motor is installed on the safety helmet, which can vibrate the head of the personnel to give an alarm. When the sound and light alarm does not work, it can notify the underground personnel more quickly. The second RFID module of the personnel node Signals can be transmitted between sensor nodes, sign-in, and identification. The advantage of the personnel node being a helmet is that it does not take up space, is easy to carry, and does not increase the burden on the user. And directly use the power circuit of the miner's lamp to make full use of resources.

A further technical solution is that the body temperature sensor is arranged inside the helmet body, the vibration motor is arranged inside the helmet body, and the second RFID module is arranged outside the helmet body.

The body temperature sensor is installed in the helmet to detect body temperature more accurately. The vibrating motor is set inside the helmet to remind employees more strongly, and the second RFID module is set outside the helmet to make the signal of sending and receiving information better.

A further technical solution is that the sensor node includes a first microprocessor, and the first microprocessor is respectively connected with a first power supply module, an acousto-optic alarm module, a first memory, a first zigbee wireless transceiver module, a first RFID module, a first A temperature sensor and a gas sensor.

The first microprocessor controls the sensor node, the first power supply module provides power for the sensor node, the sound and light alarm module sends out sound and light alarms when in distress, the first memory stores data, the first zigbee wireless transceiver module and the zigbee base station For signal transmission, the first RFID module and the personnel node perform signal transmission, the first temperature sensor collects the ambient temperature, and the gas sensor detects the gas concentration in the air.

A further technical solution is that the gas sensor is one or more gas sensors of combustible gas, oxygen, hydrogen sulfide and carbon monoxide.

It can be a sensor that detects a single gas, or a sensor that detects multiple gases simultaneously.

A further technical solution is that the mine mouth terminal equipment includes a third microprocessor, and the third microprocessor is respectively connected with a third memory, a human-computer interaction part, a debugging part and a third wireless communication module, wherein the third wireless communication module, Including RFID module and serial port module.

The third microprocessor controls the mine mouth terminal equipment, the third memory stores data, the human-computer interaction part provides display and input, and the third wireless communication module is used for data communication with personnel nodes and zigbee base stations.

A further technical solution is that the zigbee base station includes a fourth microprocessor, and the fourth microprocessor is respectively connected with a fourth memory, a fourth serial port module, a fourth zigbee wireless transceiver module and a fourth power supply module.

The zigbee base station is used to collect the signals of all the sensors placed in the mine, and transmit them to the terminal equipment at the mine mouth through jump transmission through wired serial communication.

The remarkable effect of the utility model is: the sensor node can identify the personnel node faster, can detect the ambient temperature and the concentration of toxic gas at any time, locate the personnel, and immediately alarm when an accident occurs, and let the vibration module of the personnel node vibrate to notify the underground work personnel, and detect the signs of life of underground workers through body temperature sensors.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the utility model sensor node;

Fig. 3 is the structural representation of the personnel node of the utility model;

Fig. 4 is a structural schematic diagram of the utility model mine mouth terminal equipment;

Fig. 5 is a structural schematic diagram of the utility model zigbee base station.

Detailed ways

The specific embodiment and working principle of the present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 1 is a schematic structural diagram of the utility model, a coal mine personnel life safety management system based on RFID and zigbee wireless sensor network, including a monitoring center, mine mouth terminal equipment, at least 1 zigbee base station, at least 2 A sensor node and at least one personnel node; the monitoring center and the minehead terminal equipment exchange signals wirelessly, the serial port module of the third wireless communication module of the minehead terminal equipment and the fourth serial port module of the zigbee base station perform signal transmission, and the fourth serial port module of the zigbee base station performs signal transmission. The four zigbee wireless transceiver modules and the first zigbee wireless transceiver module of the sensor node perform wireless signal transmission, and the terminal equipment at the mine mouth is equipped with a third wireless communication module to obtain the interaction signal sent by the second RFID module of the personnel node through the antenna. The first RFID module and the second RFID module of each personnel node exchange signals through antennas, each sensor node has a first temperature sensor and a gas sensor; each personnel node has a second pressure reduction module and a body temperature sensor.

The monitoring center performs real-time acquisition and control of the underground situation, and the terminal equipment at the mine mouth performs control operations and receives signals transmitted by various sensor nodes in the mine. signal of. The personnel node and the sensor node transmit signals, and when there is a danger, the vibration motor on the personnel node vibrates to issue a warning. The serial port module of the third wireless communication module of the mine mouth terminal equipment and the fourth serial port module of the zigbee base station perform signal transmission. The signal transmission between the mine mouth terminal equipment and the zigbee base station is mainly for operating and receiving the signals collected by the sensor nodes. The fourth zigbee wireless transceiver module forms a sensor node information collection point in the mine, and the terminal equipment at the mine mouth is equipped with a third wireless communication module to obtain the interactive signal sent by the second RFID module of the personnel node through the antenna, which is mainly used for the sign-in and registration of employees entering the mine. Attendance, the first RFID module of each sensor node and the second RFID module of each personnel node exchange signals through the antenna, mainly used to complete the location record of employees within the coverage area of each sensor, alarm signal transmission, each sensor node The first temperature sensor on the device is used to collect the ambient temperature, and the gas sensor is used to collect the content of combustible and harmful gases; the second voltage drop module of each personnel node is used to supply power to the body temperature sensor and the second RFID module, and the body temperature sensor is used to After receiving the detection notification signal, the body temperature is detected, and the signal is sent back to inform the staff on the well.

Generally, the sensor nodes should be covered along all the lines in the mine to ensure full coverage. The zigbee base station should also determine the number and location according to the range of sensors, and the zigbee base station should ensure that all sensor nodes are covered. The zigbee base station is connected to the mine head terminal equipment by wire.

As shown in Figure 2, Figure 2 is a schematic structural view of the sensor node of the present invention, the sensor node includes a first microprocessor, and the first microprocessor is respectively connected with a first power supply module, an acousto-optic alarm module, a first memory, a second A zigbee wireless transceiver module, a first RFID module, a first temperature sensor and a gas sensor. The first microprocessor controls the sensor node, the first power supply module provides power for the sensor node, the sound and light alarm module sends out sound and light alarms when in distress, the first memory stores data, the first zigbee wireless transceiver module and the zigbee base station For signal transmission, the first RFID module and the personnel node perform signal transmission, the first temperature sensor collects the ambient temperature, and the gas sensor detects the gas concentration in the air.

The gas sensor is one or more gas sensors of combustible gas, oxygen, hydrogen sulfide and carbon monoxide. It can be a sensor that detects a single gas, or a sensor that detects multiple gases simultaneously. The sound and light alarm module can use speakers and alarm lights.

As shown in Fig. 3, Fig. 3 is the structural representation of the personnel node of the present utility model, and the personnel node comprises the second microprocessor, and the second microprocessor is respectively connected with vibration motor, the second memory, the second RFID module, body temperature sensor and The second step-down module. The vibration motor is used to issue vibration warnings, the second memory is used to store data, the second RFID module is used to exchange data with sensor nodes and mine head terminal equipment, the body temperature sensor is used to detect the body temperature of underground workers, and the second step-down The module provides power supply for the second microprocessor, the vibration motor, the second memory, the second RFID module and the body temperature sensor.

The personnel node also includes a helmet body, on which there is a miner's lamp, and a second step-down module is connected to the power circuit of the miner's lamp, and the power supply supplies power to the detection and transmission module through the second step-down module. The personnel node is a kind of helmet. The power supply and detection transmission module are installed on the helmet. The vibration motor can vibrate the personnel's head to give an alarm. Signals can be transmitted between the module and sensor nodes for sign-in and identification. The advantage of the personnel node being a helmet is that it does not take up space, is easy to carry, and does not increase the burden on the user. And directly use the power circuit of the miner's lamp to make full use of resources. The body temperature sensor is arranged inside the helmet body, the vibration motor is arranged inside the helmet body, and the second RFID module is arranged outside the helmet body. The body temperature sensor is installed in the helmet to detect body temperature more accurately. The vibrating motor is set in the helmet to remind employees more strongly, and the second RFID module is set outside the helmet to make the signal of sending and receiving information better.

As shown in Figure 4, Fig. 4 is the structural representation of the utility model mine mouth terminal equipment, and mine mouth terminal equipment comprises the 3rd microprocessor, and the 3rd microprocessor is respectively connected with the 3rd memory, human-computer interaction part, debugging part and a third wireless communication module, wherein the third wireless communication module includes an RFID module and a serial port module. The third microprocessor controls the mine mouth terminal equipment, the third memory stores data, the human-computer interaction part provides display and input, and the third wireless communication module is used for data communication with personnel nodes and zigbee base stations.

As shown in Figure 5, Fig. 5 is the structural representation of the utility model zigbee base station, zigbee base station comprises the 4th microprocessor, the 4th microprocessor is respectively connected with the 4th memory, the 4th serial port module, the 4th zigbee wireless transceiver module and the fourth power module. The zigbee base station is used to collect the signals of all the sensors placed in the mine, and transmit them to the terminal equipment at the mine mouth through jump transmission through wired serial communication.

The basic functions of the utility model are briefly described as follows: the monitoring center detects in real time, and the employees carry personnel nodes, that is, safety helmets, to enter the mine, pass through the mine mouth terminal equipment, and automatically check on work attendance through the RFID module. Enter the mine to work, walk into the signal coverage of the sensor node, the RFID module will automatically identify, after the sensor node receives the signal, it will be sent back to the terminal equipment at the mine mouth through the zigbee base station, and the location of the employee will be recorded for positioning. When the employee walks into the coverage area of the next sensor node, the next sensor performs the same work: the RFID module automatically identifies, and after the sensor node receives the signal, it transmits back to the terminal device at the mine mouth through the zigbee base station, records the location of the employee, and performs positioning, and so on. The sensor nodes also perform temperature detection and gas detection. If the temperature changes suddenly or the gas concentration exceeds the standard, an abnormal signal is transmitted immediately and sent back to the terminal equipment at the mine head through the zigbee base station to notify the staff on the mine, and a rapid alarm is issued through the sound and light alarm module. After the port terminal equipment receives the signal, the sensor nodes nearby the sensor node that controls the alarm issue an alarm at the same time, and notify all personnel nodes within the coverage of the nearby sensor signal through the sensor node RFID module to issue a vibration alarm. Start the body temperature sensor of the personnel node to detect the body temperature of the employee, and send it back to the sensor node through the RFID module, and then transfer it to the zigbee base station, mine mouth terminal equipment, and monitoring center in turn. Let the Inoue staff know the employee's vital signs.

The above embodiments are only to illustrate the technical solutions of the present utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should understand that it can still be described in the above-mentioned embodiments. Modifications are made to the technical solutions, or equivalent replacements are made to some of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (8)

1. A coal mine personnel life safety management system based on RFID and zigbee wireless sensor network, is characterized in that: comprise monitoring center, mine mouth terminal equipment, at least 1 zigbee base station, at least 2 sensor nodes and at least one personnel node; Monitoring The center and the minehead terminal equipment exchange signals wirelessly, the serial port module of the third wireless communication module of the minehead terminal equipment and the fourth serial port module of the zigbee base station perform signal transmission, the fourth zigbee wireless transceiver module of the zigbee base station and the first sensor node A zigbee wireless transceiver module for wireless signal transmission, mine mouth terminal equipment is equipped with a third wireless communication module to obtain the interactive signal sent by the second RFID module of the personnel node through the antenna, the first RFID module of each sensor node and each personnel The second RFID module of the node exchanges signals through the antenna, and each sensor node has a first temperature sensor and a gas sensor; each personnel node has a second pressure reduction module and a body temperature sensor. 2. the coal mine personnel life safety management system based on RFID and zigbee wireless sensor network according to claim 1, is characterized in that: described personnel node comprises the second microprocessor, and the second microprocessor is respectively connected with vibration motor, the first The second memory, the second RFID module, the body temperature sensor and the second depressurization module. 3. the coal mine personnel life safety management system based on RFID and zigbee wireless sensor network according to claim 2, is characterized in that: described personnel node also comprises helmet body, and described helmet body is provided with miner's lamp, the power supply of miner's lamp A second step-down module is connected to the loop, and the power supplies power for the second microprocessor, the vibration motor, the second memory, the second RFID module and the body temperature sensor respectively through the second step-down module. 4. the coal mine personnel life safety management system based on RFID and zigbee wireless sensor network according to claim 3, is characterized in that: described body temperature sensor is arranged on the inner side of helmet body, and described vibrating motor is arranged on inner side of helmet body, so The second RFID module is arranged outside the helmet body. 5. the coal mine personnel life safety management system based on RFID and zigbee wireless sensor network according to claim 1, is characterized in that: described sensor node comprises the first microprocessor, and the first microprocessor is connected with the first power supply module respectively , a sound and light alarm module, a first memory, a first zigbee wireless transceiver module, a first RFID module, a first temperature sensor and a gas sensor. 6. The coal mine personnel life safety management system based on RFID and zigbee wireless sensor network according to claim 1, characterized in that: said gas sensor is one or more gas sensors in combustible gas, oxygen, hydrogen sulfide and carbon monoxide . 7. the coal mine personnel life safety management system based on RFID and zigbee wireless sensor network according to claim 1, is characterized in that: described mine mouth terminal equipment comprises the 3rd microprocessor, and described 3rd microprocessor is connected with respectively The third memory, the human-computer interaction part, the debugging part and the third wireless communication module, wherein the third wireless communication module includes an RFID module and a serial port module. 8. the coal mine personnel life safety management system based on RFID and zigbee wireless sensor network according to claim 1, is characterized in that: described zigbee base station comprises the 4th microprocessor, and described 4th microprocessor is connected with the 4th microprocessor respectively Memory, the fourth serial port module, the fourth zigbee wireless transceiver module and the fourth power supply module.

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