Underground safety risk avoiding system based on integration of multiple networks

Abstract

The utility model relates to an underground safety risk avoiding system based on integration of multiple networks, which comprises a network system, a safety monitoring system, a video monitoring system, a personnel positioning system and a wireless communication system, and is characterized in that the network system comprises an underground looped network switch, a wireless base station and a data conversion device; signals of various monitoring and controlling sensors, wireless transceivers, mining mobile phones and the like are accessed to an underground ring network switch or a wireless base station / data conversion device nearby to realize data transmission, and a plurality of network cameras form a group and are accessed to the underground ring network switch nearby through a front-end control box by adopting an optical fiber cascade mode to realize data transmission. And physical transmission of the video data and other data does not influence each other. According to the system, data transmission networks of three underground systems and an automatic control system are mutually combined to form three underground safety risk avoiding systems which are stable in performance, high in expansibility and capable of safely and efficiently operating and are based on integration of multiple networks, and the maintenance cost of the system is reduced while the emergency risk avoiding capacity of a mine is further improved.

Description

Technical Field

[0001] This patent application belongs to the field of underground safety and risk avoidance technology in metallurgical mines, and more specifically, it relates to an underground safety and risk avoidance system based on multi-network integration. Background Art

[0002] In order to conscientiously implement the spirit of the "Notice of the State Council on Further Strengthening Enterprise Safety Production Work" (Guo Fa

[2010] No. 23) and further improve the safety production guarantee capabilities of metal and non-metal underground mines, the State Administration of Work Safety organized the formulation of the "Interim Provisions on the Installation, Use and Supervision and Inspection of the "Six Major Systems" for Safety and Risk Avoidance in Metal and Non-metal Underground Mines", requiring underground mining enterprises to install and use the "six major systems" for safety and risk avoidance within the time limit required by these regulations, and strengthen daily management and maintenance to ensure the normal operation of each system.

[0003] The "six major systems" for underground safety and evacuation include: monitoring and surveillance system, underground personnel positioning system, mine communication and liaison system, mine compressed air self-rescue system, mine water supply and rescue system, and underground emergency evacuation system. Among them, the monitoring and surveillance system, underground personnel positioning system, and mine communication and liaison system involve network layout and data transmission. Whether data transmission can be carried out smoothly and whether the timeliness and stability of data transmission can be guaranteed are the key to the safe and stable operation of the three major systems and the improvement of mine emergency rescue and safety assurance capabilities.

[0004] At present, the existing technologies of monitoring and surveillance systems, underground personnel positioning systems, and mine communication systems all use independent networks and data transmission systems. The data transmission interfaces between the terminal monitoring sensors of each subsystem and the network base station are not unified, and the three are not combined with each other. Due to the above problems, the existing system has problems such as poor stability, weak scalability, many cables for each subsystem, and difficult maintenance, which makes it impossible to accurately determine the fault point when a fault occurs, and increases investment and maintenance costs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an underground safety and risk avoidance system based on multi-network integration, solve the above-mentioned technical problems existing in the existing technology, and form three major underground safety and risk avoidance systems based on multi-network integration with stable performance, strong scalability, and safe and efficient operation, while further improving the emergency risk avoidance capabilities of mines and reducing system maintenance costs.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is:

[0007] An underground safety and risk avoidance system based on multi-network integration, including a network system, a safety monitoring system, a video monitoring system, a personnel positioning system, and a wireless communication system.

[0008] The network system includes an underground main ring network and underground middle-section branch networks. The underground main ring network includes multiple underground ring network switches arranged at the middle-section horse head gates of the auxiliary shaft, uninterruptible power supplies electrically connected to the underground ring network switches, and optical fibers that are networked hand in hand with each underground ring network switch. The underground ring network switches are connected to the core switches located on the surface through optical fibers; the underground middle-section branch networks include wireless base stations arranged at intervals along the main tunnel, uninterruptible power supplies and data conversion devices electrically connected to each wireless base station, and each wireless base station is connected in series to the underground ring network switch. The wireless base station is a WIFI wireless base station.

[0009] The safety monitoring system includes various types of monitoring sensors and industrial computers. The monitoring sensors use four-core cables to connect to the data conversion device or the underground ring network switch through the 485 interface. The data conversion device is connected to the underground ring network switch through a wireless base station. The underground ring network switch is electrically connected to the industrial computer through the core switch. The industrial computer is located in the dispatching center and is equipped with monitoring software.

[0010] The video surveillance system includes a front-end control box arranged along the main tunnel, multiple network cameras arranged in key monitoring areas, a video integrated management platform connected to an industrial computer, and a hard disk recorder electrically connected to the video integrated management platform. The front-end control box is connected to the underground ring network switch nearby, and the network camera is electrically connected to the front-end control box via a cable.

[0011] The personnel positioning system includes personnel positioning cards installed in various middle sections and chambers underground, and wireless transceivers electrically connected to the data conversion device and the personnel positioning cards. The wireless transceivers are connected to the industrial computer through the underground ring network switch and the core switch in turn. The industrial computer is also equipped with positioning software.

[0012] The wireless communication system includes a program-controlled switch, a dispatching desk electrically connected to the program-controlled switch through cables, and mining mobile phones for people going down the mine. The program-controlled switch and the dispatching desk are connected to the underground ring network through cables; the mining mobile phones are connected to the corresponding wireless base stations and thus also connected to the underground ring network.

[0013] Furthermore, a data conversion device is arranged in parallel at each wireless base station, and the data conversion device includes an Ethernet photoelectric port, a WiFi module, a safety monitoring module, and a personnel positioning module. The Ethernet photoelectric port, the WiFi module, the safety monitoring module, and the personnel positioning module are all electrically connected to the wireless base station.

[0014] Furthermore, the optical fiber used for hand-in-hand networking between the underground ring network switches is a 4-core armored optical fiber, and each wireless base station is connected to the underground ring network switch via a 12-core optical fiber.

[0015] Furthermore, wireless base stations are arranged at intervals of 100-200m along the main lanes, and their model is magnesium strontium antimony KT112-F base station.

[0016] Furthermore, the types of monitoring sensors include but are not limited to gas, carbon monoxide, wind speed, start and stop, negative pressure, and smoke.

[0017] Furthermore, the front-end control box is connected to the underground ring network switch nearby using optical fiber polarization.

[0018] Furthermore, the wireless transceiver is a ZigBee wireless transceiver.

[0019] Furthermore, the program-controlled switch is a wired / wireless all-in-one machine.

[0020] Due to the adoption of the above-mentioned technical scheme, the beneficial effect achieved by the utility model is as follows: the system combines the numerical transmission networks of the monitoring system, the underground personnel positioning system, the mine communication system and the underground automatic control system, and combines the data transmission interfaces between the terminal monitoring sensors of each subsystem and the network base station, thereby solving the technical problems existing in the prior art, thereby forming three major underground safety and risk avoidance systems based on multi-network integration with stable performance, strong scalability, and safe and efficient operation, which further improves the emergency risk avoidance capabilities of mines while reducing system maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a structural block diagram of the data conversion device in the utility model.

[0023] In the figure: core switch 1, underground ring network switch 2, uninterruptible power supply 3, wireless base station 4, data conversion device 5, wireless transceiver 6, personnel positioning card 7, mining mobile phone 8, monitoring and surveillance sensor 9, front-end control box 10, network camera 11, industrial computer 12, video integrated management platform 14, hard disk recorder 15, programmable switch 17, dispatching desk 18. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the embodiments.

[0025] An underground safety and risk avoidance system based on multi-network integration, such as Figure 1 , including network system, security monitoring system, video surveillance system, personnel positioning system, and wireless communication system.

[0026] The network system includes an underground main ring network and underground middle-section branch networks. The underground main ring network consists of an underground ring network switch 2, an uninterruptible power supply 3, and an optical fiber. The underground ring network switch is arranged at the horse head gate of each middle section of the auxiliary shaft, and is equipped with an uninterruptible power supply 3. The optical fiber goes down from the surface through the auxiliary shaft to network the underground ring network switches 2 at each middle section in a hand-in-hand form, and returns to the surface through the lowest layer of middle-section horizontal lanes and wind shafts, forming a safe and reliable single-ring redundant main ring network underground. There is a core switch 1 on the surface, and the underground main ring network composed of the underground ring network switch 2 is connected to the core switch 1.

[0027] In the specific embodiment, a total of 5 underground ring network switches 2 are arranged underground, and the core is Hirschman RSPE30 series network management switch, which is arranged at each horse head gate of the auxiliary shaft; a total of 2 core switches 1 are set on the surface, and Hirschman MACH4002-48G-L3P series core switches are selected; the uninterruptible power supply 3 uses a mining uninterruptible power supply, with an input of 220V / 380V, an output of 24V, and a working time of not less than 2 hours; the underground ring network switches 2 are connected by 4-core armored optical fiber.

[0028] The underground middle section branch network is composed of a wireless base station 4, an uninterruptible power supply 3, and a data conversion device. The wireless base stations 4 are arranged at intervals of 100-200m along the main tunnel, and each wireless base station 4 is respectively equipped with an uninterruptible power supply 3 and a data conversion device 5. The data conversion device 5 is as follows: Figure 2 As shown, the data conversion device 5 includes an Ethernet photoelectric port, a WiFi module, a safety monitoring module and a personnel positioning module. The above-mentioned Ethernet photoelectric port, WiFi module, safety monitoring module and personnel positioning module are all connected to the wireless base station 4 to realize data conversion and data transmission between each subsystem and the wireless base station 4.

[0029] In the specific embodiment, 44 wireless base stations 4 are arranged in each middle section of the mine, and a data conversion device 5 is arranged in parallel at each wireless base station 4, and each wireless base station 4 is serially connected to the underground ring network switch 2 through a 12-core optical fiber. The wireless base station 4 uses a magnesium strontium antimony KT112-F base station; the data conversion device 5 has a rated working voltage of DC18V, a maximum working current of no more than 1A, 2 Ethernet optical interfaces, 3 Ethernet electrical interfaces, and provides an RS485 interface, supporting various types of monitoring sensors 9 and wireless transceivers 6 access.

[0030] The network management uses the network management software of the underground ring network switch 2 to uniformly manage all network devices of the entire network. In the specific embodiment, the network management software of the core switch 1 manufacturer is used, which is the prior art and does not belong to the core innovation of this patent.

[0031] The safety monitoring system is composed of monitoring sensors 9, cables, and an industrial computer 12. The industrial computer 12 is equipped with monitoring software. Various monitoring sensors 9 are connected to the data conversion device 5 or the downhole ring network switch 2 nearby through the 485 interface using four-core cables, and data is transmitted in real time through the network to the industrial computer 12 at the dispatching center.

[0032] In a specific embodiment, a total of 152 monitoring sensors 9 of various types such as gas, carbon monoxide, wind speed, start and stop, negative pressure, smoke, etc. are arranged in various middle sections underground. A four-core cable is used to connect to the data conversion device 5 or the underground ring network switch 2 nearby through the 485 interface, and the data is transmitted in real time through the network to the workstation 12 of the dispatching center.

[0033] In the specific embodiment, the models of various monitoring sensors 9 are: GTH1000 mining carbon monoxide sensor, GFY15 mining wind speed sensor, KGT15 equipment start and stop sensor, KGY3A mining negative pressure sensor, and GJC4 gas sensor.

[0034] The video monitoring system is composed of a front-end control box 10, a network camera 11, a hard disk recorder 15, and a video integrated management platform 16. The network camera 11 is arranged in the key monitoring area, and the front-end control box 10 is arranged along the main lane. Five network cameras 11 form a group, which are connected to the front-end control box 10 through cables. The front-end control box 10 adopts an optical fiber polar connection method and is connected to the underground ring network switch 2 nearby. The hard disk recorder 15 is connected to the video integrated management platform 14, and the hard disk recorder 15 and the video integrated management platform 14 are connected to the industrial computer 12 and the ring network to realize the display and management of the video, and ensure that the physical transmission of video data and other data does not affect each other, and ensure that other data transmission is not delayed.

[0035] In the specific embodiment, there are 86 mine intrinsically safe cameras, 10 flameproof cameras as network cameras 11, and 25 front-end control boxes 10, which are distributed in key monitoring areas. The video integrated management platform adopts Dahua brand and belongs to the existing technology.

[0036] The underground personnel positioning system is composed of a personnel positioning card 7, a wireless transceiver 6, and cables. The wireless transceiver 6 is arranged in each middle section and chamber of the underground mine to achieve full coverage of the mine. The wireless transceiver 6 is connected to the data conversion device 5 by a cable and is powered by the data conversion device 5. The personnel going down the mine carry the personnel positioning card 7 and realize wireless signal transmission between the wireless transceiver 6. The positioning software is installed in the industrial computer 12 and connected to the underground ring network.

[0037] In the specific embodiment, 126 wireless transceivers 6 are arranged in each middle section of the well, and connected to the data conversion device 5 through a four-core cable. The wireless transceiver 6 adopts ZigBee technology to receive the signal transmitted by the personnel positioning card 7 in real time, and transmits the data to the industrial computer 12 on the ground in real time through the wireless base station 4 and the ring network.

[0038] The wireless communication system is composed of a program-controlled switch 17, a dispatching station 18, and a mining mobile phone 8. The program-controlled switch 17 is connected to the dispatching station 18 through a cable and connected to the underground ring network through the industrial computer 2. The program-controlled switch 17 adopts a wired / wireless integrated design, which can support both wireless and wired device access. The personnel going down the mine carry a mining mobile phone 8, and realize the interconnection between wireless and wired through the wireless base station 4, and realize the dispatching call between wired and wireless.

[0039] In the specific embodiment, a total of 45 mining mobile phones 8 are provided, and the program-controlled switch 17 adopts a wired / wireless integrated design; the dispatching console 18 is a touch screen type with a recording function, which belongs to the prior art.

[0040] In a specific embodiment, the numerical transmission network of the underground monitoring system, the underground personnel positioning system, the mine wireless communication system and the underground automatic control system is combined with each other, and the various monitoring sensors 9, wireless transceivers 6, mining mobile phones 8 and other signals of each subsystem terminal are connected to the underground ring network switch 2 or wireless base station 4 / data conversion device 5 nearby to realize data transmission, and the data transmission interface between the wireless base stations 4 in the network is combined with each other, and multiple network cameras 11 are grouped together, and the front-end control box 10 adopts the optical fiber polar connection method to connect to the underground ring network switch 2 nearby, which ensures that the video data and other data physical transmission do not affect each other, and finally forms the three major underground safety and risk avoidance systems based on multi-network integration with stable performance, strong scalability, safe and efficient operation, while further improving the emergency risk avoidance capability of the mine, and reducing the system maintenance cost. Its underground trunk ring network has a redundancy function, which ensures that when any single point link fails, all other links can continue to work, the self-healing time is less than 50 milliseconds, and the average time between failures is not less than 200000h, and the fault point can be diagnosed in time for maintenance.

Claims

1. An underground safety and risk avoidance system based on multi-network integration, characterized by: Including network system, security monitoring system, video monitoring system, personnel positioning system, wireless communication system, The network system comprises an underground main ring network and underground middle-section branch networks. The underground main ring network comprises a plurality of underground ring network switches (2) arranged at the middle-section horse head gates of the auxiliary shaft, an uninterruptible power supply (3) electrically connected to the underground ring network switches (2), and optical fibers connected to each underground ring network switch (2) in a hand-in-hand manner. The underground ring network switches (2) are connected to a core switch (1) located on the surface via optical fibers. The underground middle-section branch networks comprise wireless base stations (4) arranged at intervals along the main tunnel, an uninterruptible power supply (3) and a data conversion device (5) electrically connected to each wireless base station (4), and each wireless base station (4) is connected in series to the underground ring network switch (2). The safety monitoring system comprises a plurality of types of monitoring sensors (9) and an industrial control computer (12). The monitoring sensors (9) are connected to a data conversion device (5) or a downhole ring network switch (2) by means of a cable. The data conversion device (5) is connected to the downhole ring network switch (2) via a wireless base station (4). The downhole ring network switch (2) is electrically connected to the industrial control computer (12) via a core switch (1). The industrial control computer (12) is located in a dispatching center. The video monitoring system comprises a front-end control box (10) arranged along the main tunnel, a plurality of network cameras (11) arranged in key monitoring areas, a video integrated management platform (14) connected to an industrial control computer, and a hard disk video recorder (15) electrically connected to the video integrated management platform (14); the front-end control box (10) is connected to a nearby underground ring network switch (2); and the network camera (11) is electrically connected to the front-end control box (10) via a cable; The personnel positioning system comprises a personnel positioning card (7) arranged in each middle section and chamber underground, a wireless transceiver (6) electrically connected to the data conversion device (5) and the personnel positioning card (7), and the wireless transceiver (6) is connected to the industrial control computer (12) in sequence through the underground ring network switch (2) and the core switch (1); The wireless communication system comprises a program-controlled switch (17), a dispatching desk (18) electrically connected to the program-controlled switch (17) via a cable, and a mining mobile phone (8) for personnel going down into the mine. The program-controlled switch (17) and the dispatching desk (18) are connected via a cable and connected to an underground ring network; the mining mobile phone (8) is connected to a corresponding wireless base station (4) and is thus also connected to the underground ring network. A data conversion device (5) is arranged in parallel at each wireless base station (4), the data conversion device (5) comprising an Ethernet photoelectric port, a WiFi module, a safety monitoring module, and a personnel positioning module, and the Ethernet photoelectric port, the WiFi module, the safety monitoring module, and the personnel positioning module are all electrically connected to the wireless base station (4).

2. The underground safety and risk avoidance system based on multi-network integration according to claim 1 is characterized by: The optical fiber used for hand-in-hand networking between the underground ring network switches (2) is a 4-core armored optical fiber, and each wireless base station (4) is serially connected to the underground ring network switch (2) via a 12-core optical fiber.

3. The underground safety and risk avoidance system based on multi-network integration according to claim 1 is characterized by: Wireless base stations (4) are arranged at intervals of 100-200 m along the main lane, and their model is magnesium strontium antimony KT112-F base station.

4. The underground safety and risk avoidance system based on multi-network integration according to claim 1 is characterized by: The types of monitoring sensors (9) include but are not limited to gas, carbon monoxide, wind speed, start and stop, negative pressure, and smoke.

5. An underground safety and risk avoidance system based on multi-network integration according to any one of claims 1 to 4, characterized in that: The front-end control box (10) is connected to the underground ring network switch (2) in a nearby manner by means of optical fiber polarization.

6. The underground safety and risk avoidance system based on multi-network integration according to claim 5 is characterized by: The wireless transceiver (6) is a ZigBee wireless transceiver.

7. The underground safety and risk avoidance system based on multi-network integration according to claim 6 is characterized by: The program-controlled switch (17) is a wired / wireless integrated machine.

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