CN107529153B - Emergency communication system for whole mine - Google Patents
Emergency communication system for whole mine Download PDFInfo
- Publication number
- CN107529153B CN107529153B CN201710974076.8A CN201710974076A CN107529153B CN 107529153 B CN107529153 B CN 107529153B CN 201710974076 A CN201710974076 A CN 201710974076A CN 107529153 B CN107529153 B CN 107529153B
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- antenna
- communication
- wireless communication
- underground
- base station
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- 238000004891 communication Methods 0.000 title claims abstract description 134
- 238000010295 mobile communication Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 7
- 238000004880 explosion Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 abstract description 2
- 238000006424 Flood reaction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 206010035148 Plague Diseases 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Public Health (AREA)
- Mobile Radio Communication Systems (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
Abstract
The invention discloses an emergency communication system for an all-mine. The system mainly comprises underground communication equipment, a wireless communication base station, a disaster-resistant antenna, a mobile communication terminal and the like; the emergency communication system supports two communication modes including a through-the-earth two-way communication mode with the ground as a transmission medium and underground wireless communication, realizes two-way communication between the underground communication equipment and the underground mobile terminal equipment, and can avoid communication interruption between the underground communication equipment and the underground mobile terminal equipment caused by damage of communication facilities such as a communication cable, a power supply cable, a communication antenna and the like when disasters such as floods, fires, explosions, coal and gas outbursts, rock burst, roof falling and the like occur when disasters occur in a mine, so as to provide communication services for the underground mobile communication terminal equipment. The normal communication between underground personnel and disaster relief rescue personnel and the underground is ensured, and meanwhile, the data link communication service can be provided for the sensor equipment.
Description
Technical Field
The invention relates to an emergency communication system for an all-mine, which relates to the fields of wireless communication technology, through-the-earth communication technology and the like.
Background
Coal is the main energy source in China, and accounts for about 70% of the primary energy source. The coal industry is a high-risk industry, and accidents such as gas, flood, fire, roof and the like plague the safe production of the coal mine. The underground communication system is one of six systems for safety risk avoidance of the coal mine, and is an important guarantee for the safety production of the coal mine. The existing underground communication system mainly comprises a wired dispatching communication system, a mobile communication system, a broadcasting communication system, a through-the-earth communication system, a disaster relief communication system and the like. The wired dispatching system, the mobile communication system, the broadcasting system and the uphole communication all use communication cables, and the local power supply equipment supplies power through the power supply cables. The existing underground communication cables and power supply cables are generally hung along the roadway wall, and when accidents such as coal and gas outburst, gas explosion, rock burst, roof fall, flood, fire disaster and the like occur underground, the underground communication cables and the power supply cables are easy to damage, so that the communication systems are easy to be influenced by disaster accidents and cannot be used normally. The underground communication system is a communication system based on a low-frequency underground communication technology, the accident influence is small, the disaster resistance capability is strong, but the existing underground communication system is only provided with transmitting equipment in an underground chamber, underground personnel not in the chamber cannot bidirectionally communicate with the underground, the situation of the underground personnel not in the chamber cannot be known after the accident, and therefore the existing underground communication system cannot meet the mine emergency communication requirement. The disaster relief communication system is carried by the rescue team member, and communication cannot be established at a place where the rescue team member cannot reach. In order to ensure life safety of underground personnel and solve the problems, a new emergency wireless communication system is needed, the disaster resistance capability of the system is improved, and reliable communication service is provided for the underground personnel after the underground disaster occurs.
Disclosure of Invention
The invention aims to provide an all-mine emergency communication system, wherein a wireless communication base station is arranged in a downhole chamber and supports at least two wireless communication modes; the wireless communication modes supported by the wireless communication base station comprise a through-the-earth two-way communication mode taking the earth as a transmission medium; the communication mode supported by the wireless communication base station comprises a bidirectional wireless communication mode with at least one underground mobile terminal device, the wireless communication base station and a wireless communication antenna of the mobile terminal device adopt anti-catastrophe antennas, feeder lines of the anti-catastrophe antennas adopt a tunnel wall grooving embedded installation mode, a junction of the antenna feeder lines and the wireless communication base station adopts a disc-reserved installation mode, the antenna feeder lines can be stretched in a lossless manner under the action of external force, and a connecting device of the antenna feeder lines adopts a waterproof wiring device; the disaster-resistant antenna comprises an antenna with a rod-shaped appearance, wherein the rod-shaped antenna comprises an antenna sheath with waterproof, fireproof and impact-resistant materials, and the rod-shaped antenna adopts a tunnel wall grooving embedded installation mode; the disaster-resistant antenna comprises an antenna with a protective cover, wherein the protective cover adopts a streamline side section or an arc side section, and the protective cover adopts a waterproof, fireproof and impact-resistant material without a radio signal shielding effect.
1. The system further comprises: the wireless communication antennas of the wireless communication base station and the mobile terminal device comprise helical antennas.
2. The system further comprises: the wireless communication antennas of the wireless communication base station and the mobile terminal device include leaky cables.
3. The system further comprises: the antenna of the wireless communication base station includes a metal reflective backplate insulated from the antenna.
4. The system further comprises: the wireless communication base station and the mobile terminal equipment comprise automatic pop-up standby antennas.
Drawings
Fig. 1 a schematic diagram 1 of an all-mine emergency communication system implementation.
Fig. 2 the whole mine emergency communication system implements the schematic diagram 2.
Fig. 3 is a schematic diagram of a wireless communication base station principle.
Figure 4 is a schematic diagram of an embodiment of a self-ejecting alternate antenna.
Figure 5 is a pop-up schematic of a self-pop-up alternate antenna embodiment.
Detailed Description
The wireless communication system used in the emergency communication system may be a variety of wireless communication networks such as a 2G, 3G or 4G mobile communication system, a Personal Handyphone System (PHS), a Wireless Wide Area Network (WWAN), a Wireless Local Area Network (WLAN), a Wireless Personal Area Network (WPAN), a Wireless Sensor Network (WSN), etc.
Embodiment 1 of the emergency communication system is as shown in fig. 1, and the composition includes:
1. the underground communication system comprises an underground communication host (101) used for carrying out underground communication with an underground wireless communication base station (105), wherein a CanaryTM underground communication system host of Canada Vitalalert company can be adopted, an underground receiving antenna (102) and an underground transmitting antenna (103) are connected with a monitoring host (104) through an RS485 data interface, an active sound box (106) is connected with an audio output port, and an external microphone (105) is connected with an MIC interface.
2. And the underground receiving antenna (102) is used for receiving underground through-the-earth communication signals and is arranged close to the ground or embedded in the ground by adopting a loop antenna.
3. And the aboveground transmitting antenna (103) is used for transmitting the underground communication signals, and is mounted close to the ground or embedded in the ground by adopting a loop antenna.
4. The monitoring host (104) is used for underground data monitoring and data communication with underground personnel carrying the mobile communication terminal (104), and is connected with the ground penetrating communication host (101) in a mode of converting an RS232 interface of the (101) into an RS 485.
5. And the microphone (105) is used for inputting voice of a dispatcher and is connected with the ground communication host (101) through the MIC interface.
6. And the active sound box (106) is used for outputting the voice received by underground personnel and is connected with the ground communication host (101) through the audio output port.
7. The wireless communication base station (107) has a through-the-earth communication function with the underground and a wireless communication function with the underground, is responsible for the forwarding communication between equipment such as a mobile communication terminal (115) and the underground communication equipment, and is internally provided with a storage battery.
8. And the underground through-the-earth receiving antenna (108) is used for receiving through-the-earth communication signals on the well and is mounted close to the top plate of the chamber or embedded into the top plate by adopting a loop antenna.
9. And a downhole through-the-earth transmitting antenna (109) for transmitting through-the-earth communication signals uphole, which is mounted against the top plate or embedded in the top plate by using a loop antenna.
10. A headset (110) for voice communication by a person downhole with the well.
11. The anti-catastrophe antenna (111) is used for transmitting and receiving underground wireless communication and is connected with the wireless communication base station (105) through an antenna feeder line; an antenna sheath with a rod-shaped shape and made of waterproof, fireproof and impact-resistant materials is adopted; the tunnel wall grooving embedded installation mode is adopted.
12. The antenna feeder (112) is used for connecting the wireless communication base station (107) with the disaster-resistant antenna (106) for underground wireless communication, and in order to prevent cable damage caused by external force dragging when underground disasters occur, a disc-reserved installation mode is adopted at the joint of the antenna feeder and the wireless communication base station, the antenna feeder can be stretched in a lossless manner under the action of external force, and a tunnel wall grooving embedded installation mode is adopted at the interface part of the antenna feeder and the disaster-resistant antenna.
13. The automatic shrinkage paying-off device (113) is provided with a plane spiral spring at the shaft part, is used for coiling an antenna feeder line (106), has the function of automatically shrinking a cable, automatically paying off when the coiled cable is stretched by external force, and automatically taking up when no external force acts.
14. And the antenna metal backboard (114) is used for reflecting underground wireless signals, is embedded into the grooved bottom of the tunnel wall and is installed to be insulated with the anti-catastrophe antenna (111).
15. A mobile communication terminal (115) including a cell phone, a locator card, a miner's lamp with wireless communication function, a portable instrument with wireless communication function and other devices with wireless communication function.
Fig. 2 is a schematic diagram of embodiment 2 of an emergency communication system, which differs from embodiment 1 in that:
1. no antenna metal backplate (114) is required.
2. The anti-catastrophe antenna (108) employs a scheme including a directional plate antenna or yagi antenna, the antenna being mounted against the roadway wall.
3. The protective cover is used for protecting the disaster-resistant antenna (108), is arranged on the roadway wall, adopts a streamline side section or an arc side section, and adopts waterproof, fireproof and impact-resistant materials without radio signal shielding effect.
4. The underground through-the-earth receiving antenna (108) and the underground through-the-earth transmitting antenna (109) are buried in the bottom plate of the chamber for installation.
Fig. 3 is an embodiment of a wireless communication base station (105), mainly including:
1. a power supply unit (301): the device comprises an alternating current-direct current conversion part, a battery, a voltage conversion part and a battery charge-discharge management part, wherein the alternating current-direct current conversion part adopts an AC/DC module to convert alternating current provided by underground power supply equipment into direct current required by the equipment and also charges and supplies power for a storage battery; the battery uses a lithium ion storage battery, the lithium battery has the reverse connection preventing function, has an external protection circuit outside an internal protection circuit, has the functions of overcharge prevention, overdischarge prevention, overcurrent, short circuit and the like, and has the functions of balanced charge and balanced discharge. The voltage conversion is responsible for converting the output voltage of the lithium battery into the voltage required by other unit elements when the equipment is not externally powered, and a MAX1724 power chip is adopted. The battery charging management core chip adopts a CS0301 lithium battery charging management chip.
2. The underground communication unit (302) is responsible for communicating with underground communication equipment and mainly comprises an underground communication module, wherein the underground communication module can be CanaryTM underground communication module of the Canada Vitalalert company, and is externally connected with an underground through receiving antenna (102) and an underground through transmitting antenna (103), and is connected with the wireless communication unit (303) through a data interface and is connected with the headset (105) through an audio output port and an MIC interface.
3. The wireless communication unit (303) is responsible for underground wireless communication and mainly comprises a wireless communication module, wherein a core chip of the wireless communication module adopts a CC2430 of TI company and is connected with an interface of an antenna feeder (112) through a flexible special patch cord.
Fig. 4 is a schematic diagram of an embodiment of the automatic pop-up standby antenna of the wireless communication base station, which mainly includes:
1. the main antenna (401) adopts a plate-shaped omnidirectional antenna, the main antenna and the spring baffle (403) are connected to an antenna hinge (402) mechanism as a rigid whole, the system is perpendicular to the wall of a roadway in normal operation, and when the system is acted by an external force parallel to the direction of the roadway, the spring baffle is driven to rotate along a hinge shaft.
2. And the antenna hinge (402) is connected with and fixed to the main antenna (401) and the spring baffle (403) and can freely rotate at 180 degrees.
3. And the spring baffle (403) is used for controlling a triggering mechanism for automatically ejecting the standby antenna (405), is connected with the main antenna (401) as a rigid whole on the shaft of the antenna hinge (402), rotates along with the rotation of the main antenna (401), and is combined with the spring mechanism (404) to realize the automatic ejection of the standby antenna.
4. And the spring mechanism (404) is used for providing power for ejecting the standby antenna (405).
5. The standby antenna (405) adopts a platy omnidirectional antenna, is connected with the spring mechanism (404) and the standby antenna hinge (406), is arranged in the chamber when the system works normally, is blocked by the spring baffle (403) and is vertical to the side wall of the chamber, and when the main antenna (401) rotates under the external force, the standby antenna is not blocked by the spring baffle (403) any more, and automatically pops up into the tunnel under the action of the spring mechanism (404).
6. And the standby antenna hinge (406) is connected with the fixed standby antenna (405) and the spring baffle (403) and can freely rotate at 180 degrees.
Fig. 5 is a schematic diagram of the wireless communication base station after the automatic pop-up alternate antenna implementation pops up.
Claims (4)
1. An emergency communication system for an all-mine is characterized in that: installing a wireless communication base station in the underground chamber, wherein the wireless communication base station supports at least two wireless communication modes; the wireless communication modes supported by the wireless communication base station comprise a through-the-earth two-way communication mode taking the earth as a transmission medium; the wireless communication base station supports a communication mode comprising a bidirectional wireless communication mode with at least one underground mobile terminal device, wherein the wireless communication base station and a wireless communication antenna of the mobile terminal device adopt anti-catastrophe antennas, the antennas of the wireless communication base station comprise metal reflection back plates insulated with the antennas, feeder lines of the anti-catastrophe antennas adopt a tunnel wall grooving embedded installation mode, a joint of the antenna feeder lines and the wireless communication base station adopts a disc-reserved installation mode, the antenna feeder lines can be stretched nondestructively under the action of external force, and a connecting device of the antenna feeder lines adopts a waterproof wiring device; the disaster-resistant antenna comprises an antenna with a rod-shaped appearance, wherein the rod-shaped antenna comprises an antenna sheath with waterproof, fireproof and impact-resistant materials, and the rod-shaped antenna adopts a tunnel wall grooving embedded installation mode; the disaster-resistant antenna comprises an antenna with a protective cover, wherein the protective cover adopts a streamline side section or an arc side section, and the protective cover adopts a waterproof, fireproof and impact-resistant material without the shielding effect of radio signals; the whole mine emergency communication system comprises: the system comprises a through-the-earth communication host, an on-well receiving antenna, an on-well transmitting antenna, a monitoring host, a microphone, an active sound box, a wireless communication base station, an underground through-the-earth receiving antenna, an underground through-the-earth transmitting antenna, a headset, an anti-disaster antenna, an antenna feeder line, an automatic shrinkage pay-off device, an antenna metal backboard and a mobile communication terminal.
2. The emergency communication system of claim 1, wherein: the wireless communication antennas of the wireless communication base station and the mobile terminal device comprise helical antennas.
3. The emergency communication system of claim 1, wherein: the wireless communication antennas of the wireless communication base station and the mobile terminal device include leaky cables.
4. The emergency communication system of claim 1, wherein: the antennas of the wireless communication base station and the mobile terminal equipment comprise automatic pop-up standby antennas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710974076.8A CN107529153B (en) | 2017-10-19 | 2017-10-19 | Emergency communication system for whole mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710974076.8A CN107529153B (en) | 2017-10-19 | 2017-10-19 | Emergency communication system for whole mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107529153A CN107529153A (en) | 2017-12-29 |
| CN107529153B true CN107529153B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710974076.8A Active CN107529153B (en) | 2017-10-19 | 2017-10-19 | Emergency communication system for whole mine |
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| Country | Link |
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| CN (1) | CN107529153B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109144213B (en) * | 2018-06-29 | 2020-06-30 | 河南中多科技发展有限公司 | D-wave underground communication circuit with reset function |
| CN111106876A (en) * | 2018-10-10 | 2020-05-05 | 北京信息科技大学 | Method and device used in tunnel rescue communication |
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| CN107529153A (en) | 2017-12-29 |
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