CN110500134A - A kind of erosion control region limit person's management system - Google Patents
A kind of erosion control region limit person's management system Download PDFInfo
- Publication number
- CN110500134A CN110500134A CN201910805019.6A CN201910805019A CN110500134A CN 110500134 A CN110500134 A CN 110500134A CN 201910805019 A CN201910805019 A CN 201910805019A CN 110500134 A CN110500134 A CN 110500134A
- Authority
- CN
- China
- Prior art keywords
- limit person
- intrinsic safety
- safety type
- management system
- control region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Mining
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Abstract
The invention discloses a kind of erosion control region limit person's management systems, relate generally to mining personnel positioning technical field, including transmitting substation, card reader, identification card, symmetrical infrared emission sensor, anti-explosion computer, intrinsic safety type sound equipment, intrinsic safety type sound pick-up, Mine-used I. S interchanger, server host, anti-explosion computer one end connects the server host on well by Mine-used I. S interchanger, the other end is separately connected symmetrical infrared emission sensor, transmit substation, it transmits substation and is equipped with card reader, external identification card signal can be read, intrinsic safety type sound equipment, intrinsic safety type sound pick-up is respectively placed on anti-explosion computer, worker's information is identified using radio frequency card reading, compared with camera identifies face mode, recognition accuracy greatly improves, automatic calculate shows real-time number, limit person's number, the information such as overcrowding number, it effectively reduces The error rate of artificial statistics, and reduce employment cost.
Description
Technical field
The invention mainly relates to mining personnel positioning technical field, specifically a kind of erosion control region limit person's management system.
Background technique
Coal resources in China occurrence condition is complicated, based on pit mining, the disaster threats such as gas, water damage, bump
Seriously.As coal mining depth increases and coal exploitation intensity increases, rock blast hazard gradually upgrades, and with other disasters
Coupling superposition, difficulty of prevention and cure further increase.At the existing bump mine 139 in the whole nation, wherein adopting the mine 26 of deep super km
Place.Bump mine 2/3rds is distributed in coal and calls in province only, plays a significant role in ensureing local coal supply.
Rock blast hazard is effectively prevented, is both the task of top priority urgently to be resolved of Safety of Coal Mine Production field, and ensures the energy and original
The realistic problem that material supply must solve.
In December, 2018, country's coal mine Work Safety Supervision Bureau formulated " underground coal mine one-shift operation number limit person regulation " (coal safety supervision row
2018 ﹞ of Guan ﹝ 38), it makes stipulations to production, construction underground coal mine split run total number of persons and getting working face one-shift operation number.
According to the rules, mine is divided into 7 grades, it is specified that the mine one-shift operation number of each class by production capacity,
Middle high methane, coal (rock) and gas (carbon dioxide) are prominent, hydrogeology is complicated and the extremely serious mine of the disasters such as complexity, bump
Well is no more than 850 people, other mines are no more than 450 people.To the serious mine of disaster, mechanical coal mining working surface production
Class is no more than 25 people, maintenance crew is no more than 40 people, and blast mining face is no more than 25 people；Mechanical drivage working face is most
It is no more than 18 people, gun diging face is no more than 15 people more.The 325th command of Government of Shandong Province signs and issues " Shandong Province's coal mine impact
Press prevention and treatment method in ground ", the formal execution from September 1st, 2019.The appearance for being somebody's turn to do " method " is that national coal mine stem bump is anti-
The local regulation controlled, therefore reinforce coal mine rock burst preventing and controlling, bump accident is effectively taken precautions against, ensures that Coal Mine Staff is raw
Life and property safety are the emphasis of Safety of Coal Mine Production, have the serious region of coal mine rock burst to carry out labour personnel limit person management
It is imperative.
Majority coal mine is by installing erosion control lattice door at present, and sets up special erosion control work station, provides hands with fixed
Number statistics enter erosion control area people number, but frequently due to personnel's disengaging, erosion control administrative staff heavy workload and numerous
It is trivial, often there are hands and limit person's number mismatches, registration form two skimble-scamble phenomenons with more than.Part uses recognition of face
Limit person's system that camcorder technology is set up, since face is easy to be adhered to by coal ash worker in the construction process, identification matching is accurate
Rate is extremely low.
Summary of the invention
In view of the deficiencies in the prior art and defect, the present invention provides a kind of erosion control region limit person's management system,
Limit person's system is installed in underworkings, it can be achieved that the real-time statistics by limit person's point worker's number, overcrowding alarm, people
The data of limit person's point can not be uploaded in real time server host on well, be the people on well by the functions such as member's information record display
Member's management system provides real time data.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme:
A kind of erosion control region limit person's management system, it is characterised in that: including transmission substation, card reader, identification card, symmetrical
Infrared emission sensor, anti-explosion computer, intrinsic safety type sound equipment, intrinsic safety type sound pick-up, Mine-used I. S interchanger, server master
Machine,
Anti-explosion computer one end connects the server host on well by Mine-used I. S interchanger, and the other end is separately connected
Symmetrical infrared emission sensor, transmission substation, transmission substation are equipped with card reader, can read external identification card signal, this
Peace type sound equipment, intrinsic safety type sound pick-up are respectively placed on anti-explosion computer；
The personnel that go into the well carry identification card, and identification card can emit signal, when identification card is in limit person's system card reader a certain range
When interior, monitoring card reader receives the signal of identification card sending, and signal is analyzed, is handled, and sends signals to transmission
Substation changes into light or electric signal is sent to anti-explosion computer；
At the region that worker is monitored by infrared emission sensor, two pairs of front and back infrared sensor successively receives signal,
And the signal is transferred to anti-explosion computer by sensor control panel；
Anti-explosion computer handles transmission substation and the data that transmit of infrared emission sensor respectively, judge staff into
Artificial situation, and software end data is updated, while the data of limit person's point are transmitted to ground by intrinsic safety type interchanger, ground is logical
It crosses coffret to convert fiber-optic signal, gives server host and handled, server host end software will be at data
The limit person for showing each limit person's point, overcrowding, real-time number information are updated at foreground interface after reason.
As a further improvement of the present invention, the transmission substation is in a carrying low-power consumption ARM architecture processor
Mainboard is controlled, which has one with multi-functional, can connect multiple card reader, is equipped with RJ45 network interface, the exchange of connecting mine intrinsic safety type
Machine.
As a further improvement of the present invention, the card reader carries the radio frequency chip of 2.4G frequency range, and worker's pendant can be read
The identification card worn.
As a further improvement of the present invention, the identification card is active card rfid card.
As a further improvement of the present invention, the infrared emission sensor can connect sensor control panel, for detecting
The passage situation of worker can will test data by 232 buses and be transmitted to anti-explosion computer.
As a further improvement of the present invention, the intrinsic safety type sound equipment be connected to anti-explosion computer, it can be achieved that voice broadcast,
The functions such as alarm.
As a further improvement of the present invention, the intrinsic safety type sound pick-up is connected to anti-explosion computer, it can be achieved that from underground
It is called on well.
As a further improvement of the present invention, the anti-explosion computer is special purpose computer under mine, extremely by network interface connection
Mine-used I. S interchanger can receive the identification card information that transmission substation transmission comes, install limit person's software systems, can pass through screen
Curtain shows the information such as the real-time number of limit person's point, limit person's number, overcrowding number, and can open network, by the real-time of a limit person's point
Data are uploaded to the server on ground.
As a further improvement of the present invention, the intrinsic safety type interchanger, has optical fiber input/output function, passes through RJ45
Each equipment in network connection system.
Compared with prior art, the device have the advantages that are as follows:
1, the present invention identifies worker's information using radio frequency card reading, compared with camera identifies face mode, recognition accuracy
It greatly improves；
2, the present invention uses computer end limit person software, and automatic calculate shows the letter such as real-time number, limit person's number, overcrowding number
Breath, effectively reduces the error rate manually counted, and reduce employment cost.
Detailed description of the invention
The present invention is further illustrated with reference to the accompanying drawings and detailed description:
Fig. 1 is a kind of flow chart of erosion control region limit person's management system of the present invention.
Specific embodiment
In order to which technical solution of the present invention and beneficial effect are more clearly understood, combined with specific embodiments below to the present invention
It is described in further detail, it should be understood that the specific embodiments described herein are only used for understanding the present invention, and do not have to
Of the invention, the every other implementation obtained by those of ordinary skill in the art without making creative efforts in limiting
Example, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of flow chart of erosion control region limit person's management system of the present invention, including transmission substation, card reader, identification
Card, symmetrical infrared emission sensor, anti-explosion computer, intrinsic safety type sound equipment, intrinsic safety type sound pick-up, Mine-used I. S interchanger,
Server host；
Anti-explosion computer one end connects the server host on well by Mine-used I. S interchanger, and the other end is separately connected
Symmetrical infrared emission sensor, transmission substation, transmission substation are equipped with card reader, can read external identification card signal, this
Peace type sound equipment, intrinsic safety type sound pick-up are respectively placed on anti-explosion computer；
The transmission substation is a middle control mainboard for carrying low-power consumption ARM architecture processor, and it is more which has a band
Function can connect multiple card reader, be equipped with RJ45 network interface, connecting mine intrinsic safety type interchanger.
The card reader carries the radio frequency chip of 2.4G frequency range, and the identification card of worker's wearing can be read.
The identification card is active card rfid card.
The infrared emission sensor can connect sensor control panel, for the passage situation of detection workman, can pass through 232
Bus will test data and be transmitted to anti-explosion computer.
The intrinsic safety type sound equipment is connected to anti-explosion computer, it can be achieved that the functions such as voice broadcast, alarm.
The intrinsic safety type sound pick-up is connected to anti-explosion computer, it can be achieved that calling from underground on well.
The anti-explosion computer is special purpose computer under mine, by network interface connection to Mine-used I. S interchanger, be can receive
The identification card information come to transmission substation transmission, installs limit person's software systems, the real-time people of limit person's point can be shown by screen
The information such as number, limit person's number, overcrowding number, and can open network, the real time data of a limit person's point is uploaded to the service on ground
Device.
The intrinsic safety type interchanger, has optical fiber input/output function, passes through each equipment in RJ45 network connection system.
In underground, the critical positions such as main roadway, the only way which must be passed install limit person's system, and the personnel that go into the well carry identification card, identification
Card can emit signal, and when identification card is in limit person's system card reader a certain range, monitoring card reader receives identification card sending
Signal, signal is analyzed, is handled, and sends signals to transmission substation and changes into light or electric signal is sent to explosion-proof calculating
Machine；
At the region that worker is monitored by infrared emission sensor, two pairs of front and back infrared sensor successively receives signal,
And the signal is transferred to anti-explosion computer by sensor control panel；Computer handles transmission substation respectively and infrared emission passes
The data that sensor transmits, judge the disengaging situation of staff, and update software end data.The data of limit person's point are led to simultaneously
It crosses intrinsic safety type interchanger and is transmitted to ground, ground is converted fiber-optic signal by coffret, given at server
Reason, server software, which will update after data processing at foreground interface, shows that the limit person of each limit person's point, overcrowding, real-time number believe
Breath.
It is worth noting that, in the description of the present invention, term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Claims (9)
1. a kind of erosion control region limit person's management system, it is characterised in that: including transmission substation, card reader, identification card, symmetrical red
Outer opposite type sensor, anti-explosion computer, intrinsic safety type sound equipment, intrinsic safety type sound pick-up, Mine-used I. S interchanger, server host,
Anti-explosion computer one end connects the server host on well by Mine-used I. S interchanger, and the other end is separately connected symmetrically
Infrared emission sensor, transmission substation, transmission substation is equipped with card reader, can read external identification card signal, intrinsic safety type
Sound equipment, intrinsic safety type sound pick-up are respectively placed on anti-explosion computer；
The personnel that go into the well carry identification card, and identification card can emit signal, when identification card is in limit person's system card reader a certain range,
Monitoring card reader receives the signal of identification card sending, and signal is analyzed, is handled, and sends signals to transmission substation and turn
Cheng Guang or electric signal are sent to anti-explosion computer；
At the region that worker is monitored by infrared emission sensor, two pairs of front and back infrared sensor successively receives signal, and will
The signal is transferred to anti-explosion computer by sensor control panel；
The data that anti-explosion computer handles transmission substation respectively and infrared emission sensor transmits, judge the disengaging feelings of staff
Condition, and software end data is updated, while the data of limit person's point are transmitted to ground by intrinsic safety type interchanger, ground passes through biography
Defeated interface converts fiber-optic signal, gives server host and is handled, and server host end software will be after data processing
The limit person for showing each limit person's point, overcrowding, real-time number information are updated at foreground interface.
2. a kind of erosion control region limit person's management system according to claim 1, it is characterised in that: the transmission substation is one
Money carries the middle control mainboard of low-power consumption ARM architecture processor, which has one with multi-functional, can connect multiple card reader, match
Standby RJ45 network interface, connecting mine intrinsic safety type interchanger.
3. a kind of erosion control region limit person's management system according to claim 1, it is characterised in that: the card reader is carried
The identification card of worker's wearing can be read in the radio frequency chip of 2.4G frequency range.
4. a kind of erosion control region limit person's management system according to claim 1, it is characterised in that: the identification card is active
Block rfid card.
5. a kind of erosion control region limit person's management system according to claim 1, it is characterised in that: the infrared emission sensing
Device can connect sensor control panel, for the passage situation of detection workman, can be will test by 232 buses data be transmitted to it is explosion-proof
Computer.
6. a kind of erosion control region limit person's management system according to claim 1, it is characterised in that: the intrinsic safety type sound equipment connects
Anti-explosion computer is connected to, it can be achieved that the functions such as voice broadcast, alarm.
7. a kind of erosion control region limit person's management system according to claim 1, it is characterised in that: the intrinsic safety type sound pick-up
Anti-explosion computer is connected to, it can be achieved that calling from underground on well.
8. a kind of erosion control region limit person's management system according to claim 1, it is characterised in that: the anti-explosion computer is
Special purpose computer under mine can receive the identification card that transmission substation transmission comes by network interface connection to Mine-used I. S interchanger
Information installs limit person's software systems, can show that real-time number, limit person's number, overcrowding number of limit person's point etc. are believed by screen
Breath, and can open network, the real time data of a limit person's point is uploaded to the server on ground.
9. a kind of erosion control region limit person's management system according to claim 1, it is characterised in that: the intrinsic safety type exchange
Machine has optical fiber input/output function, passes through each equipment in RJ45 network connection system.
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| CN201910805019.6A CN110500134A (en) | 2019-08-29 | 2019-08-29 | A kind of erosion control region limit person's management system |
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| CN201910805019.6A CN110500134A (en) | 2019-08-29 | 2019-08-29 | A kind of erosion control region limit person's management system |
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ID=68590246
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| CN201910805019.6A Pending CN110500134A (en) | 2019-08-29 | 2019-08-29 | A kind of erosion control region limit person's management system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982692A (en) * | 2021-11-23 | 2022-01-28 | 泰安万川电器设备有限公司 | Coal mine underground anti-scour limiter early warning system and method |
| CN115424407A (en) * | 2022-09-02 | 2022-12-02 | 中国矿业大学 | Intelligent sensing system and method for underground coal mine dangerous area |
| CN116167705A (en) * | 2022-12-01 | 2023-05-26 | 上海山源电子科技股份有限公司 | Restricted area personnel statistics method and device, electronic equipment and medium |
| CN117404072A (en) * | 2023-12-15 | 2024-01-16 | 山东新云鹏电气有限公司 | Drilling site management system based on artificial intelligence |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758572A (en) * | 2013-12-13 | 2014-04-30 | 常州联力自动化科技有限公司 | Mining personnel security management system |
| CN105261101A (en) * | 2015-11-06 | 2016-01-20 | 广州市设计院 | Open type channel management system and method |
| CN206977593U (en) * | 2017-07-13 | 2018-02-06 | 中国工程物理研究院化工材料研究所 | The dangerous automatic countdown warning system of worker-house personnel |
| CN109492990A (en) * | 2018-10-15 | 2019-03-19 | 山东东山王楼煤矿有限公司 | A kind of comprehensive limit person's management method in the rock burst fatalness area and management system |
| CN110159348A (en) * | 2019-05-28 | 2019-08-23 | 肥城矿业集团梁宝寺能源有限责任公司 | Erosion control area personnel security management system and management method |
-
2019
- 2019-08-29 CN CN201910805019.6A patent/CN110500134A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758572A (en) * | 2013-12-13 | 2014-04-30 | 常州联力自动化科技有限公司 | Mining personnel security management system |
| CN105261101A (en) * | 2015-11-06 | 2016-01-20 | 广州市设计院 | Open type channel management system and method |
| CN206977593U (en) * | 2017-07-13 | 2018-02-06 | 中国工程物理研究院化工材料研究所 | The dangerous automatic countdown warning system of worker-house personnel |
| CN109492990A (en) * | 2018-10-15 | 2019-03-19 | 山东东山王楼煤矿有限公司 | A kind of comprehensive limit person's management method in the rock burst fatalness area and management system |
| CN110159348A (en) * | 2019-05-28 | 2019-08-23 | 肥城矿业集团梁宝寺能源有限责任公司 | Erosion control area personnel security management system and management method |
Non-Patent Citations (1)
| Title |
|---|
| 程志宇等: "常村煤矿防冲击地压区域人员定位预警系统的开发和应用", 《能源技术与管理》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982692A (en) * | 2021-11-23 | 2022-01-28 | 泰安万川电器设备有限公司 | Coal mine underground anti-scour limiter early warning system and method |
| CN115424407A (en) * | 2022-09-02 | 2022-12-02 | 中国矿业大学 | Intelligent sensing system and method for underground coal mine dangerous area |
| CN116167705A (en) * | 2022-12-01 | 2023-05-26 | 上海山源电子科技股份有限公司 | Restricted area personnel statistics method and device, electronic equipment and medium |
| CN116167705B (en) * | 2022-12-01 | 2023-09-12 | 上海山源电子科技股份有限公司 | Restricted area personnel statistics method and device, electronic equipment and medium |
| CN117404072A (en) * | 2023-12-15 | 2024-01-16 | 山东新云鹏电气有限公司 | Drilling site management system based on artificial intelligence |
| CN117404072B (en) * | 2023-12-15 | 2024-02-23 | 山东新云鹏电气有限公司 | Drilling site management system based on artificial intelligence |
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Application publication date: 20191126 |