CN106640200A - Coal mine downhole sensor positioning and warning system - Google Patents

Abstract

The invention provides a coal mine underground sensor positioning alarm system, the positioning alarm system mainly includes an underground sensor, a device for monitoring the position of the underground sensor, a communication network, a data storage service device, a monitoring service device and a monitoring terminal. The service device is responsible for monitoring the position of the sensor in the mine, and when it detects that the sensor position moves to meet the set conditions, it sends out an alarm signal. The positioning alarm system can effectively prevent man-made sensor position cheating, ensure that each sensor can work reliably and effectively, prevent fires, explosions and other accidents caused by gas overruns in the coal production process, and effectively ensure safe production in coal mines.

Description

Coal Mine Underground Sensor Location Alarm System

technical field

The invention relates to a coal mine underground sensor positioning alarm system, which relates to the fields of radio communication, underground safety monitoring, positioning technology and the like.

Background technique

Coal mine safety monitoring is a necessary measure to curb serious accidents in coal mines. "AQ1029-2016 Coal Mine Safety Monitoring System and Use of Monitoring Instruments" and other safety production industry and coal industry standards have specified the detailed installation locations of methane sensors, wind speed, wind direction and other sensors in various coal mine underground working faces and roadways, and also clearly stipulated The limit value of each sensor and the corresponding automatic processing flow such as power-off lockout can prevent the occurrence of fires, explosions and other accidents caused by gas exceeding the limit in the coal production process, and effectively ensure the safe production of coal mines. However, in the actual production process, in order to reduce the impact of gas over-limit power failure and lockout on coal production, some underground workers did not install or move sensors in the specified positions, causing major accidents such as gas explosions. The current coal mine safety monitoring system can only monitor the working status and communication status of the sensor, but cannot monitor the actual position of the sensor. In order to prevent man-made sensor position cheating and ensure that each sensor can work reliably and effectively, a system that can monitor the installation position of downhole sensors in real time and automatically identify and alarm the sensor position cheating is needed.

Contents of the invention

The invention provides a coal mine underground sensor positioning alarm system, the system includes at least one underground sensor and at least one device for monitoring the position of the underground sensor; the system stores at least one position data and its allowable error data; the system monitors the current position data of the sensor and compares the current position data of the sensor with the designed installation position data of the sensor stored in the system. Send out an alarm signal.

1. The positioning alarm system further includes: the device for monitoring the position of the underground sensor includes a device for monitoring absolute position and a device for monitoring relative position.

2. The positioning alarm system further includes: the installation location of the device for monitoring the position of the underground sensor includes the housing of the underground sensor.

3. The positioning alarm system further comprises: the sensor position data includes three-dimensional position data.

4. The positioning alarm system further comprises: the sensor position data includes two-dimensional position data.

5. The positioning alarm system further includes: the sensor position data includes one-dimensional distance data; the one-dimensional distance data includes one-dimensional distance data along the roadway axis.

6. The positioning alarm system further includes: the sensor location data includes longitude, latitude and altitude data.

7. The positioning alarm system further includes: the sensor position data includes distance data from a reference object.

8. The positioning alarm system further includes: the device for monitoring the position of the underground sensor includes the positioning terminal equipment of the underground positioning system.

9. The positioning alarm system further includes: the device for monitoring the position of the underground sensor in the mine includes ultrasonic ranging and positioning equipment.

10. The positioning alarm system further includes: the device for monitoring the position of the underground sensor includes laser ranging and positioning equipment.

11. The positioning alarm system further includes: the device for monitoring the position of the underground sensor in the mine includes infrared ranging and positioning equipment.

12. The positioning alarm system further includes: the device for monitoring the position of the underground sensor includes electronic radar positioning equipment.

13. The positioning alarm system further includes: the device for monitoring the position of the underground sensor includes image monitoring and positioning equipment.

14. The positioning alarm system further includes: the system also includes a communication network, a data storage service device, a monitoring service device and a monitoring terminal; the communication network is used to transmit data; the data storage service device is used to store the design and installation position data of each sensor information and its allowable error data; the monitoring service device is used to process and monitor sensor position-related data information, and when the processing results meet the alarm conditions, an alarm signal is sent to the monitoring terminal; the monitoring terminal is used for sensor position and status display, with sound and light alarm function .

15. The positioning alarm system further includes: the system uses at least one distance measuring device to collect the current distance data between the sensor and the reference object, and sends the current distance data between the sensor and the reference object to the monitoring service device through the communication network, and monitors The service device compares the current distance data between the sensor and the reference object with the designed installation distance data between the sensor and the reference object stored in the data storage device, and when it is detected that the absolute value of the difference between the two distance data exceeds the stored allowable When error data is detected, an alarm signal is issued.

16. The positioning alarm system further includes: the system uses at least one device for monitoring the two-dimensional position data of the sensor in the mine, and the monitoring service device directly collects the current two-dimensional position data of the sensor through the communication network, or collects data related to the current position of the sensor. The data of the sensor is processed by the monitoring service device to obtain the current two-dimensional position data of the sensor; the monitoring service device compares the current two-dimensional position data with the two-dimensional position data of the sensor design and installation stored in the data storage service device. When the distance of the designed installation position is greater than the allowable error data of the sensor stored, an alarm signal is sent.

17. The positioning alarm system further includes: the system uses at least one device for monitoring the three-dimensional position data of the underground sensor, and the monitoring service device directly collects the current three-dimensional position data of the sensor through the communication network, or collects data related to the current position of the sensor , the current three-dimensional position data of the sensor is processed by the monitoring service device; the monitoring service device compares the current three-dimensional position data with the designed and installed three-dimensional position data of the sensor stored in the data storage service device, when the distance between the current sensor position and the designed installation position is monitored When it is greater than the allowable error data of the sensor stored, an alarm signal is sent.

18. The positioning alarm system further includes: the underground sensors include methane sensors, temperature sensors, carbon monoxide sensors, carbon dioxide sensors, oxygen sensors, wind speed sensors, wind direction sensors, smoke sensors, and cameras.

Embodiment examples of the present invention are described in more detail below.

Description of drawings

Figure 1 is a schematic diagram of the system composition of the implementation example 1 of the underground sensor positioning and alarm system in coal mines.

Fig. 2 is a schematic diagram of the principle composition of sensors in the implementation example 1 of the underground sensor positioning and alarm system in coal mines.

Fig. 3 is a schematic diagram of the alarm process of the implementation example 1 of the underground sensor positioning alarm system in the coal mine.

Figure 4 is a schematic diagram of the system composition of the implementation example 2 of the underground sensor positioning and alarm system in coal mines.

Fig. 5 is a schematic diagram of the principle composition of sensors in the implementation example 2 of the underground sensor positioning and alarm system in coal mines.

Fig. 6 is a schematic diagram of the system composition of the implementation example 3 of the underground sensor positioning and alarm system in the coal mine.

detailed description

The device for monitoring the position of the underground sensor in the positioning alarm system of the present invention can use TOA, TDOA, RSSI, AOA, image recognition and other positioning technologies for positioning; it can use ultrasonic ranging positioning equipment, laser ranging positioning equipment, infrared measuring Equipment such as distance positioning equipment, electronic radar positioning equipment, and image recognition positioning equipment monitor the position of the sensor in the mine; the device for monitoring the position of the sensor in the mine is generally integrated in the sensor, and the electronic radar positioning equipment and image recognition positioning equipment can be installed independently. External monitoring sensor position; The communication network of described positioning alarm system can adopt various wireless communication networks such as wireless wide area network (WWAN), wireless local area network (WLAN), wireless personal area network (WPAN), wireless sensor network (WSN) and so on wired internet.

Implementation example 1 shown in Figure 1 is a coal mine underground sensor positioning alarm system based on wireless local area network (WLAN) and RSSI positioning technology, the main components include:

1. The monitoring terminal (101) is responsible for sensor position monitoring, sound and light alarm and human-computer interaction. Production management personnel can access the monitoring server and storage server through the monitoring terminal to realize real-time monitoring of downhole sensors and other equipment; the monitoring terminal has a sensor Design installation location and sensor data display and other query functions; production management personnel can also access the storage server through the monitoring terminal to perform operations such as adding, deleting, inputting, and modifying sensors and design locations; the monitoring terminal has a map display function, and the geographic information platform can Using the MapX mapping component, the mine map is a roadway vector map, and the map file is in MapInfo format.

2. storage server (102), is the data storage service device, is responsible for storing each sensor design and installation location data information and its allowable error data, and provides data service for monitoring server (103) and monitoring terminal (101); storage server can also be Store other sensor-related data, such as gas concentration data collected by the gas sensor, smoke state data collected by the smoke sensor (107), roadway wind speed data collected by the wind speed sensor (108), and the like.

3. The monitoring server (103), which is a monitoring service device, is responsible for providing sensor position data and monitoring alarm data for the monitoring terminal (101), and sends alarm data to the monitoring terminal when it is found that the sensor position changes meet the set conditions.

4. The switch (104), the switching device of the communication network, is responsible for the data exchange of all devices connected to the communication network, and an Ethernet switch device can be used.

5. The substation (105) is responsible for performing communication network access and forwarding services for sensors and other wireless communication devices, and as a positioning reference positioning node to provide positioning services for sensors and other wireless communication devices, using standard WiFi access devices.

6. The methane sensor (106), used for methane concentration monitoring, has a built-in wireless communication module, and realizes positioning and wireless communication through substations.

7. A temperature sensor (107), used for temperature monitoring, has a built-in wireless communication module, and realizes positioning and wireless communication through substations.

8. A carbon monoxide sensor (108), used for monitoring the concentration of carbon monoxide in the roadway, with a built-in wireless communication module to realize positioning and wireless communication through substations.

9. A carbon dioxide sensor (109), used for carbon dioxide concentration monitoring, has a built-in wireless communication module, and realizes positioning and wireless communication through substations.

10. An oxygen sensor (110), used for oxygen concentration monitoring, with a built-in wireless communication module, which realizes positioning and wireless communication through substations.

11. A wind speed sensor (111), used for wind speed monitoring in the roadway, with a built-in wireless communication module to realize positioning and wireless communication through substations.

12. A wind direction sensor (112), used for wind direction monitoring in the roadway, with a built-in wireless communication module, which realizes positioning and wireless communication through substations.

13. The smoke sensor (113), used for smoke monitoring, has a built-in wireless communication module, and realizes positioning and wireless communication through substations.

Fig. 2 is the main hardware composition of the sensor in the implementation example 1:

1. The main board (201) is the core component of the sensor, and the components on the board include a core processor, a storage unit, a power supply and clock module, and a sensor module.

2. Core processor (202), using Samsung S3C2440 processor, S3C2440 is a microprocessor based on ARM920T core, with 3 UART interfaces, 2 SPI interfaces, 2 USB interfaces, 1 IIC-BUS interface; equipped with Linux system.

3. Storage unit (203); including 256M NAND Flash, a piece of 4M NOR Flash, 128M SDRAM, and a piece of EEPROM with IIC-BUS interface.

4. The power supply and clock module (204) includes voltage conversion and clock management components, and DC voltage conversion adopts MAX1724 series power chips to supply power for all chips; a 12MHz crystal oscillator is selected.

5. The sensor module (205) is responsible for collecting environmental data, such as collecting the methane concentration of the roadway, the MQ-4 methane sensor module can be used, the range range is 300 to 10000ppm, and the methane concentration is converted into an analog electrical signal, which is performed by the core processor. /D conversion to realize data acquisition. The main components of other sensors are basically the same as the methane sensor, except that the environmental data collected are different, such as the carbon monoxide sensor (108) adopts the ME2-C0 carbon monoxide sensor module; the carbon dioxide sensor (109) adopts the MG811 carbon dioxide gas sensor module; the oxygen sensor (110 ), using ME3-O2 oxygen sensor module, etc.

6. The wireless communication module (206), which adopts a USB interface Wifi wireless network card, is supported by Linux and device drivers, and accesses the communication network through wireless communication.

The alarm process of the implementation example 1 of the underground sensor positioning alarm system in coal mine is shown in Figure 3:

1. (301) The sensor collects the RSSI value of the signal strength of the Wifi signal sent by the substation within the wireless communication distance.

2. (302) The sensor calculates its own coordinate value according to the RSSI value of each substation signal and the stored position coordinates of each substation.

3. (303) The sensor sends position data including its own number and its own coordinate value.

4. (304) The substation forwards the location data.

5. (305) The monitoring server retrieves the design and installation position data information of the sensor and its allowable error data from the storage server according to the received sensor number.

6. (306) The monitoring server calculates the distance between the current position of the sensor and the designed installation position of the sensor. When the obtained distance is greater than the allowable error range of the sensor, it transmits alarm data including the sensor number, the designed installation position and the current position to the monitoring terminal. Otherwise return to execute (301).

7. (307) According to the alarm data, the monitoring terminal displays the designed installation position and the current position of the sensor in different colors on the display screen, and sends out an audible and visual alarm.

Figure 4 is a schematic diagram of the implementation example 2 of the positioning alarm system. The main difference from the implementation example 1 is that each sensor has a built-in distance measuring device, which can measure one-dimensional distance data along the axial direction of the roadway, such as the distance between the sensor and the working face or the roadway wall ; The location data processed and stored in this example are all one-dimensional distance data.

Fig. 5 is the main hardware composition of the sensor in the implementation example 2 of the positioning alarm system. Compared with the main composition of the sensor in the implementation example 1 of Fig. 2, a ranging module (207) has been added for measuring one-dimensional distance data, Ultrasonic ranging equipment such as KS109 transceiver integrated ultrasonic ranging module distance sensor can be used to communicate with the core processor through the IIC-BUS interface; laser ranging positioning equipment such as GLS-B60 laser ranging sensor module can also be used to communicate with the core processor Use USB interface for communication; infrared distance measuring and positioning equipment such as GP2Y0A710K infrared distance measuring module can also be used, and the analog data output by the core processor is collected by the module. The wireless communication module (206) is only responsible for wireless communication without positioning. The alarm process of implementation example 2 is basically the same as that of implementation example 1 shown in FIG. 3 , except that the involved location data are all one-dimensional distance data.

Fig. 6 is the implementation example 3 of the positioning alarm system. The main difference from the implementation example 1 is that the camera (114) is used to locate each sensor through pattern recognition, and the identification and positioning can be completed by the monitoring server.

Claims (19)

1. underground coal mine sensor positioning alarm system, it is characterised in that：The system includes at least one mine lower sensor With at least one device for monitoring mine lower sensor position；System is stored with related to each Sensor Design installation site At least one position data and its allowable error data；System monitoring sensor current location data, and sensor is current The Sensor Design installation position data that position data is stored with system is compared, when monitor sensing station with design peace When holding position distance is more than allowable error, then alarm signal is sent.

2. positioning alarm system as claimed in claim 1, it is characterised in that：It is described for monitoring mine lower sensor position Device includes the device of the device of monitoring absolute position and monitoring relative position.

3. positioning alarm system as claimed in claim 1, it is characterised in that：It is described for monitoring mine lower sensor position The installation site of device is included in downhole sensor housing.

4. positioning alarm system as claimed in claim 1, it is characterised in that：The sensor position data includes three-dimensional position Data.

5. positioning alarm system as claimed in claim 1, it is characterised in that：The sensor position data includes two-dimensional position Data.

6. positioning alarm system as claimed in claim 1, it is characterised in that：The sensor position data includes one-dimensional distance Data；The one-dimensional distance data include the one-dimensional distance data along tunnel axial direction.

7. positioning alarm system as claimed in claim 1, it is characterised in that：The sensor position data includes longitude, latitude Degree and altitude information.

8. positioning alarm system as claimed in claim 1, it is characterised in that：The sensor position data includes and object of reference Range data.

9. positioning alarm system as claimed in claim 1, it is characterised in that：The device of the monitoring mine lower sensor position Including the positioning terminal equipment of downhole positioning system.

10. positioning alarm system as claimed in claim 1, it is characterised in that：The dress of the monitoring mine lower sensor position Put including ultrasonic ranging location equipment.

11. positioning alarm systems as claimed in claim 1, it is characterised in that：The dress of the monitoring mine lower sensor position Put including laser ranging location equipment.

12. positioning alarm systems as claimed in claim 1, it is characterised in that：The dress of the monitoring mine lower sensor position Put including infrared distance measurement location equipment.

13. positioning alarm systems as claimed in claim 1, it is characterised in that：The dress of the monitoring mine lower sensor position Put including electronic radar location equipment.

14. positioning alarm systems as claimed in claim 1, it is characterised in that：The dress of the monitoring mine lower sensor position Put including image monitoring location equipment.

15. positioning alarm systems as claimed in claim 1, it is characterised in that：The system also includes that communication network, data are deposited Storage service unit, monitoring service device and monitor terminal；Communication network is used for transmission data；Data storage service device is used to deposit Store up each Sensor Design installation position data information and its allowable error data；Monitoring service device is used to processing and monitoring sensing Device location dependent data information, alarm signal is sent when result meets alert if to monitor terminal；Monitor terminal is used In sensing station and status display, with sound and light of alarm.

16. positioning alarm systems as claimed in claim 1, it is characterised in that：The system uses at least one distance-measuring equipment The current distance data of collection sensor and object of reference, and by communication network by sensor and the current distance data of object of reference Send to monitoring service device, monitoring service device fills the current distance data of sensor and object of reference with the data storage The design and installation range data of the sensor and object of reference of putting storage is compared, exhausted when the difference for monitoring two range data During the allowable error data of this sensor for exceeding storage to value, then alarm signal is sent.

17. positioning alarm systems as claimed in claim 1, it is characterised in that：The system uses at least one monitoring mine The device of lower sensor two-dimensional position data, monitoring service device directly gathers the current two-dimensional position of sensor by communication network Data, or the data related to sensor current location are gathered, the current Two-dimensional Position of sensor is obtained by the process of monitoring service device Put data；Monitoring service device installs this Sensor Design of current two-dimensional position data and the storage of data storage service device Two-dimensional position data is compared, when this biography of distance more than storage for monitoring current sensor position and design and installation position During the allowable error data of sensor, then alarm signal is sent.

18. positioning alarm systems as claimed in claim 1, it is characterised in that：The system uses at least one monitoring mine The device of lower sensor three-dimensional location data, monitoring service device directly gathers the current three-dimensional position of sensor by communication network Data, or the data related to sensor current location are gathered, the current three-dimensional position of sensor is obtained by the process of monitoring service device Put data；Monitoring service device installs this Sensor Design of current three-dimensional location data and the storage of data storage service device Three-dimensional location data is compared, when this biography of distance more than storage for monitoring current sensor position and design and installation position During the allowable error data of sensor, then alarm signal is sent.

19. positioning alarm systems as claimed in claim 1, it is characterised in that：The mine lower sensor is sensed including methane Device, temperature sensor, carbon monoxide transducer, carbon dioxide sensor, oxygen sensor, air velocity transducer, wind transducer, Smoke Sensor, video camera.