CN108005724A - A kind of fire TT&C system - Google Patents
A kind of fire TT&C system Download PDFInfo
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- CN108005724A CN108005724A CN201711262573.1A CN201711262573A CN108005724A CN 108005724 A CN108005724 A CN 108005724A CN 201711262573 A CN201711262573 A CN 201711262573A CN 108005724 A CN108005724 A CN 108005724A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 53
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims description 14
- 239000000779 smoke Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000001931 thermography Methods 0.000 claims description 6
- 239000003245 coal Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Abstract
The invention belongs to technical field of mine safety, is specifically a kind of fire TT&C system, including:Fire detection unit, vital signs body detection unit, microprocessor, remote monitoring unit, prewarning unit and fire extinguishing unit;Fire detection unit is used for the real-time temperature detected in colliery, smokescope and has aphlogistic situation;Prewarning unit is used for realization alarm, vital signs body detection unit is used to detect in colliery to be existed either with or without vital signs body, fire extinguishing unit is used for the performing fire extinguishing of the task, the present invention can realize automatic monitoring, self-extinguishing, automatic alarm, and it can realize long-range monitoring and control, manual control function has also been added in fire extinguishing unit and alarm unit at the same time, alarm and targetedly to eliminate safe hidden trouble targetedly and early, support personnel and property safety are achieveed the purpose that with multi-ensuring.
Description
Technical field
The invention belongs to technical field of mine safety, and in particular to a kind of fire TT&C system.
Background technology
The mine in colliery is Frequent Accidents part, and it is exactly often major accident that accident, which once occurs, can be caused serious
Personal injury and property loss, therefore to mine and its surrounding carry out monitor closely it is essential.Coal in colliery is inflammable, holds
Fire easily occurs, it is therefore desirable to which monitor closely, current monitoring lack unified pipe mainly by the independent each monitoring point of setting
Reason, once fire behavior occurs in some monitoring point, investigation monitoring point takes slowly, delays rescue.
The content of the invention
The purpose of the present invention is overcome above-mentioned problems of the prior art, there is provided a kind of fire TT&C system, can be with
Realize early discovery, early processing, to achieve the purpose that support personnel and safety of coal mines.
The technical scheme is that:A kind of fire TT&C system, including:Fire detection unit, vital signs physical examination are surveyed
Unit, microprocessor, remote monitoring unit, prewarning unit and fire extinguishing unit;The fire detection unit have it is multiple, it is equal respectively
Cloth is on each default test point inside colliery, for detecting the temperature in colliery, smokescope in real time and having aphlogistic
Situation, and by detected temperature, smokescope and whether there is flare up fire and be sent to the microprocessor in real time, meanwhile, institute
Microprocessor is stated after fire alarm signal is received, is deposited the GPS location that fire occurs in real time by analyzing alert locations point
Storage;The vital signs body detection unit is used for the fire alarm signal described in real-time reception transmitted by microprocessor, and is connecing
After receiving fire alarm signal, detect in colliery and exist either with or without vital signs body, and the signal detected is sent in real time
The microprocessor;The microprocessor is for the temperature in the colliery described in real-time reception transmitted by fire detection unit, cigarette
Mistiness degree and whether there is flare up fire and be sent to remote monitoring unit, microprocessor is at the same time by the temperature in received colliery
Degree, smokescope and whether there is the temperature of flare up fire and setting, smokescope and there is aphlogistic upper threshold value to be compared in real time,
If alarm signal is sent to far by the temperature value in received colliery higher than the temperature upper threshold value set, the microprocessor
Range monitoring unit;If the temperature, smokescope value in received colliery are above the temperature of setting, the upper-level threshold of smokescope
Alarm signal is sent to remote monitoring unit by value, the microprocessor, and the remote monitoring unit will be by sending warning letter
Breath notifies related personnel to investigate;It is dense that if the temperature, smokescope value in received colliery are above the temperature of setting, smog
The upper threshold value of degree, and have flame generation, the microprocessor will send fire alarm signal to the prewarning unit, while by fire
Calamity alarm signal is sent to remote monitoring unit and vital signs body detection unit;The microprocessor is additionally operable to real-time reception institute
The vital signs physical examination transmitted by vital signs body detection unit is stated to survey signal and be sent to remote monitoring unit;The microprocessor
Device surveys signal and the number to prestore in microprocessor also while fire alarm signal is sent, by the vital signs physical examination received
According to being compared, in the presence of having vital signs body in colliery, microprocessor by signal it is converted after mark be,
Fire alarm signal is sent to remote monitoring unit, 119 alarm call of remote monitoring unit automatic dialing, notice at the same time
Fire-fighting is assisted, and sends fire extinguishing signal to fire extinguishing unit;In the presence of in colliery without vital signs body, microprocessor passes through signal
Mark is after conversion, while fire alarm signal is sent to remote monitoring unit, and sends fire extinguishing signal to fire extinguishing
Unit;The microprocessor is additionally operable to the control instruction signal transmitted by real-time reception remote monitoring unit;The prewarning unit
Warn and broadcast including manual alarm, audible-visual annunciator and fire-fighting;The manual alarm is used for after finding fire the condition of a disaster, people
For manual pulling alarm, the position of fire alarm signal and place is sent to the microprocessor, the microprocessor will
Fire alarm signal is sent to audible-visual annunciator, and fire alarm signal is sent by fire-fighting warning broadcast and the position of fire occurs
Put, while fire alarm signal is sent to remote monitoring unit and vital signs body detection unit;The remote monitoring unit
Including wireless communication module and mobile client, in the colliery that microprocessor described in wireless communication module real-time reception is sent
Temperature, smokescope, whether there is flare up fire, vital signs physical examination survey signal and be sent to mobile client, the remote monitoring
Unit is additionally operable to receive the alarm signal that the microprocessor is sent, and relative alarm signal is handled through mobile client, and will
Relevant control instruction signal is sent to the microprocessor, and when there is fire, the remote monitoring unit passes through mobile client
End dials 119 alarm calls and alarms;The fire extinguishing unit is used for the fire extinguishing signal that microprocessor described in real-time reception is sent,
After the fire extinguishing signal that microprocessor is sent is received, the task of fire extinguishing is performed.
Preferably, the microprocessor is also connected by controlling switch with electrical source of power signal.
Preferably, the fire detection unit includes heat detector, the sense being connected respectively with the microprocessor signals
Smoke detector and infrared flame detector;The heat detector is negative temperature coefficient of resistance thermistor-type (NTC) sensor,
NTC sensor has multiple, to be respectively arranged inside colliery each test points;The smoke detector is ion type smog sensing
Device, smoke sensor device have multiple, are correspondingly arranged in respectively beside heat detector.
Preferably, the vital signs body detection unit includes the infrared thermography being connected with microprocessor signals, institute
State the infrared signal that the vital signs body that signal detects for the infrared thermography is surveyed in vital signs physical examination.
Preferably, the fire extinguishing unit has multiple, each test point being distributed on inside colliery, and fire extinguishing unit includes being arranged on
Expert system in microprocessor, the microprocessor connect fuse, the fire extinguishing being electrically connected with fuse by expert system signal
Bullet, goes back signal on the fire extinguisher bomb and is connected with manual electronic lighter, meanwhile, the microprocessor is connected by expert system signal
Water injection system is connect, telecontrol electronic switch and manual buttons, the manual buttons and manual control are provided with the same time in the water injection system
Electronic lighter, for the control under automatically controlled failure or manual operation state, the telecontrol electronic switch and fuse are by connecing
Receive the command information that the microprocessor is sent and perform action.
Preferably, the microprocessor is the PLC controller of model OMRON CP1E-N20DR-D.
Preferably, the wireless communication module is 3G wireless communication modules, 4G wireless communication modules or WIFI module.
Beneficial effects of the present invention:
1st, the system flexible arrangement, can easily be installed in colliery.
2nd, colliery unusual condition can be notified related personnel by the system in advance, remind related personnel to pay attention to and check colliery
Situation, when fire occurs, alerts related personnel's emergency shutdown and withdraws rapidly in time.
3rd, the system can realize that temperature, the situation of smokescope in the colliery to steam coal ore deposit are monitored automatically, from
Dynamic fire extinguishing.
4th, the system can realize long-range monitoring and control.
5th, the system has also added manual control function in fire extinguishing unit and alarm unit, so as to targetedly early
Eliminate safe hidden trouble.
Brief description of the drawings
Fig. 1 is the system block diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention
Protection domain and from the limitation of embodiment.
As shown in Figure 1, a kind of fire TT&C system is present embodiments provided, including:Fire detection unit, vital signs body
Detection unit, microprocessor, remote monitoring unit, prewarning unit and fire extinguishing unit;The fire detection unit have it is multiple, point
It is not distributed on each default test point inside colliery, for detecting the temperature in colliery, smokescope in real time and whetheing there is fire
The situation of flame, and by detected temperature, smokescope and whether there is flare up fire and be sent to the microprocessor in real time, together
When, the microprocessor is real by the GPS location that fire occurs by analyzing alert locations point after fire alarm signal is received
When store;The vital signs body detection unit is used for the fire alarm signal described in real-time reception transmitted by microprocessor, and
After fire alarm signal is received, detect in colliery and exist either with or without vital signs body, and the signal detected is sent out in real time
Give the microprocessor;The microprocessor is used for the temperature in the colliery described in real-time reception transmitted by fire detection unit
Degree, smokescope and whether there is flare up fire and be sent to remote monitoring unit, and microprocessor is at the same time by received colliery
Temperature, smokescope and whether there is the temperature of flare up fire and setting, smokescope and to have aphlogistic upper threshold value to carry out real-time
Compare, if the temperature value in received colliery sends out alarm signal higher than the temperature upper threshold value of setting, the microprocessor
Give remote monitoring unit;If the temperature, smokescope value in received colliery are above the temperature of setting, smokescope
Upper threshold value, alarm signal is sent to remote monitoring unit by the microprocessor, and the remote monitoring unit will pass through transmission
Information warning notifies related personnel to investigate;If the temperature, smokescope value in received colliery be above setting temperature,
The upper threshold value of smokescope, and have flame generation, the microprocessor will send fire alarm signal to the prewarning unit, together
When fire alarm signal is sent to remote monitoring unit and vital signs body detection unit;The microprocessor is additionally operable in real time
The vital signs physical examination transmitted by the vital signs body detection unit is received to survey signal and be sent to remote monitoring unit;It is described
Microprocessor is surveyed the vital signs physical examination received pre- in signal and microprocessor also while fire alarm signal is sent
The data deposited are compared, in the presence of having vital signs body in colliery, microprocessor by signal it is converted after mark for
High level, while fire alarm signal is sent to remote monitoring unit, the remote monitoring unit automatic dialing 119 are alarmed electricity
Words, notice fire-fighting are assisted, and send fire extinguishing signal to fire extinguishing unit;In the presence of in colliery without vital signs body, microprocessor
It is by the converted rear mark of signal, while fire alarm signal is sent to remote monitoring unit, and sends fire extinguishing letter
Number give fire extinguishing unit;The microprocessor is additionally operable to the control instruction signal transmitted by real-time reception remote monitoring unit;It is described
Prewarning unit includes manual alarm, audible-visual annunciator and fire-fighting warning broadcast;The manual alarm is used to find fire
After the condition of a disaster, manual pulling alarm, the microprocessor is sent to by the position of fire alarm signal and place, described micro-
Processor will send fire alarm signal to audible-visual annunciator, and warn broadcast to send fire alarm signal and generation by fire-fighting
The position of fire, while fire alarm signal is sent to remote monitoring unit and vital signs body detection unit;It is described long-range
Monitoring unit includes wireless communication module and mobile client, what microprocessor described in wireless communication module real-time reception was sent
Temperature, smokescope in colliery, whether there is flare up fire, signal is surveyed in vital signs physical examination and is sent to mobile client, described
Remote monitoring unit is additionally operable to receive the alarm signal that the microprocessor is sent, through mobile client processing relative alarm letter
Number, and relevant control instruction signal is sent to the microprocessor, when there is fire, the remote monitoring unit passes through shifting
Dynamic client dials 119 alarm calls and alarms;The fire extinguishing unit is gone out for what microprocessor described in real-time reception was sent
Fiery signal, after the fire extinguishing signal that microprocessor is sent is received, performs the task of fire extinguishing.
Further, the microprocessor is also connected by controlling switch with electrical source of power signal.
Further, the fire detection unit include be connected respectively with the microprocessor signals heat detector,
Smoke detector and infrared flame detector;The heat detector is negative temperature coefficient of resistance thermistor-type (NTC) sensing
Device, NTC sensor have multiple, to be respectively arranged inside colliery each test points;The smoke detector is ion type smog
Sensor, smoke sensor device have multiple, are correspondingly arranged in respectively beside heat detector.
Further, the vital signs body detection unit includes the infrared thermography being connected with microprocessor signals,
The infrared signal for the vital signs body that signal detects for the infrared thermography is surveyed in the vital signs physical examination.
Further, the fire extinguishing unit has multiple, each test point being distributed on inside colliery, and fire extinguishing unit includes setting
Expert system in microprocessor, the microprocessor connect fuse by expert system signal, and what is be electrically connected with fuse goes out
Fiery bullet, goes back signal on the fire extinguisher bomb and is connected with manual electronic lighter, meanwhile, the microprocessor passes through expert system signal
Water injection system is connected, telecontrol electronic switch and manual buttons, the manual buttons and hand are provided with the same time in the water injection system
Electronic lighter is controlled, for the control under automatically controlled failure or manual operation state, the telecontrol electronic switch and fuse pass through
Receive the command information that the microprocessor is sent and perform action.
Further, the microprocessor is the PLC controller of model OMRON CP1E-N20DR-D.
Further, the wireless communication module is 3G wireless communication modules, 4G wireless communication modules or WIFI module.
It is of the invention by temperature, smog, flame, the detection for whetheing there is life entity as the further explanation of the present invention, and will
Temperature signal, smokescope signal, whether there is flame, whether there is life entity signal be converted into electric signal as control signal input it is micro-
Processor, microprocessor carries out corresponding computing in internal system, and is made a policy according to the result of computing, determine which piece or
Several pieces of fire extinguisher bombs should be detonated, and then the fuse of microprocessor to corresponding fire extinguisher bomb sends initiation command, make fire extinguisher bomb quick-fried
It is fried to discharge a large amount of ultra-fine dry powder extinguishing agents, in a short time by from the beginning of naked light put out, water drenching behaviour can also be performed accordingly
Make, auxiliary fire extinguishing, eliminates fire safety evaluating hidden danger.
In conclusion a kind of fire TT&C system flexible arrangement provided by the invention, can easily be installed on coal
In ore deposit, colliery unusual condition can be notified into related personnel in advance, remind related personnel to pay attention to and check colliery situation, work as fire
During generation, related personnel's emergency shutdown is alerted in time and is withdrawn rapidly, it is possible to achieve to the temperature in the colliery of steam coal ore deposit, smog
The situation of concentration is monitored automatically, self-extinguishing, automated cleaning, realizes long-range monitoring and control, also in fire extinguishing unit and
Manual control function is added on alarm unit, targetedly to eliminate safe hidden trouble early.
Disclosed above is only several specific embodiments of the present invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think change should all fall into protection scope of the present invention.
Claims (7)
- A kind of 1. fire TT&C system, it is characterised in that including:Fire detection unit, vital signs body detection unit, microprocessor Device, remote monitoring unit, prewarning unit and fire extinguishing unit;The fire detection unit has multiple, is distributed on respectively on each default test point inside colliery, for examining in real time The temperature surveyed in colliery, smokescope and have aphlogistic situation, and by detected temperature, smokescope and whether there is flame Signal is sent to the microprocessor in real time, meanwhile, the microprocessor is reported after fire alarm signal is received by analyzing The GPS location real-time storage of fire will occur for alert location point;The vital signs body detection unit is used for the fire alarm signal described in real-time reception transmitted by microprocessor, and is connecing After receiving fire alarm signal, detect in colliery and exist either with or without vital signs body, and the signal detected is sent in real time The microprocessor;The microprocessor is for the temperature in the colliery described in real-time reception transmitted by fire detection unit, smokescope and has No flare up fire is simultaneously sent to remote monitoring unit, and microprocessor is at the same time by the temperature in received colliery, smokescope With whether there is the temperature of flare up fire and setting, smokescope and there is aphlogistic upper threshold value to be compared in real time, if received Colliery in temperature value higher than the temperature upper threshold value of setting, alarm signal is sent to remote monitoring list by the microprocessor Member;If the temperature, smokescope value in received colliery are above the temperature of setting, the upper threshold value of smokescope, described Alarm signal is sent to remote monitoring unit by microprocessor, and the remote monitoring unit will notify phase by sending information warning Pass personnel investigate;If the temperature, smokescope value in received colliery are above the temperature of setting, the upper-level threshold of smokescope Value, and have flame generation, the microprocessor will send fire alarm signal to the prewarning unit, while fire alarm is believed Number it is sent to remote monitoring unit and vital signs body detection unit;Letter is surveyed in the vital signs physical examination that the microprocessor is additionally operable to described in real-time reception transmitted by vital signs body detection unit Number and be sent to remote monitoring unit;The microprocessor surveys signal and Wei Chu also while fire alarm signal is sent, by the vital signs physical examination received The data to prestore in reason device are compared, and in the presence of having vital signs body in colliery, microprocessor is converted by signal Mark is afterwards, while fire alarm signal is sent to remote monitoring unit, the remote monitoring unit automatic dialing 119 alarm calls, notice fire-fighting are assisted, and send fire extinguishing signal to fire extinguishing unit;In the presence of in colliery without vital signs body, The converted rear mark of signal is by microprocessor, while fire alarm signal is sent to remote monitoring unit, concurrently Fire extinguishing signal is sent to fire extinguishing unit;The microprocessor is additionally operable to the control instruction signal transmitted by real-time reception remote monitoring unit;The prewarning unit includes manual alarm, audible-visual annunciator and fire-fighting warning broadcast;The manual alarm is used for It was found that after fire the condition of a disaster, manual pulling alarm, the microprocessor is sent to by the position of fire alarm signal and place Device, the microprocessor will send fire alarm signal to audible-visual annunciator, and warn broadcast to send fire alarm by fire-fighting Signal and the position that fire occurs, while fire alarm signal is sent to remote monitoring unit and vital signs physical examination survey list Member;The remote monitoring unit includes wireless communication module and mobile client, micro- place described in wireless communication module real-time reception The temperature in the colliery that device is sent, smokescope are managed, flare up fire, vital signs physical examination survey signal is whether there is and is sent to movement Client, the remote monitoring unit is additionally operable to receive the alarm signal that the microprocessor is sent, at mobile client Relative alarm signal is managed, and relevant control instruction signal is sent to the microprocessor, when there is fire, the long-range prison Control unit dials 119 alarm calls by mobile client and alarms;The fire extinguishing unit is used for the fire extinguishing signal that microprocessor described in real-time reception is sent, and is receiving what microprocessor was sent After fire extinguishing signal, the task of fire extinguishing is performed.
- 2. a kind of fire TT&C system as claimed in claim 1, it is characterised in that the microprocessor also passes through controlling switch It is connected with electrical source of power signal.
- A kind of 3. fire TT&C system as claimed in claim 1, it is characterised in that the fire detection unit include respectively with Heat detector, smoke detector and the infrared flame detector of the microprocessor signals connection;The heat detector is Negative temperature coefficient of resistance thermistor type sensors;The smoke detector is ion type smog sensor.
- 4. a kind of fire TT&C system as claimed in claim 1, it is characterised in that the vital signs body detection unit includes The infrared thermography being connected with microprocessor signals, the vital signs physical examination are surveyed signal and are detected for the infrared thermography The infrared signal of the vital signs body arrived.
- 5. a kind of fire TT&C system as claimed in claim 1, it is characterised in that the fire extinguishing unit has multiple, is distributed on Each test point inside colliery, fire extinguishing unit include the expert system being arranged in microprocessor, and the microprocessor passes through special Family's system signal connection fuse, the fire extinguisher bomb being electrically connected with fuse, goes back signal on the fire extinguisher bomb and is connected with manual electronic striking Device, meanwhile, the microprocessor connects water injection system by expert system signal, and remote control is provided with the same time in the water injection system Electronic switch and manual buttons, the manual buttons and manual electronic lighter, for automatically controlled failure or manual operation state Under control, the telecontrol electronic switch and fuse perform action by receiving the command information that the microprocessor is sent.
- 6. a kind of fire TT&C system as claimed in claim 1, it is characterised in that the microprocessor is model OMRON The PLC controller of CP1E-N20DR-D.
- 7. a kind of fire TT&C system as claimed in claim 1, it is characterised in that the wireless communication module is 3G channel radios Believe module, 4G wireless communication modules or WIFI module.
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CN110363952A (en) * | 2019-08-20 | 2019-10-22 | 宝钢湛江钢铁有限公司 | A kind of contactless early warning system of fire-fighting early stage |
CN110379116A (en) * | 2019-05-30 | 2019-10-25 | 广东元一科技实业有限公司 | A kind of alarm system and its alarm method based on Internet of Things |
CN110390794A (en) * | 2019-08-20 | 2019-10-29 | 宝钢湛江钢铁有限公司 | A kind of three optical cross-section imaging radar monitoring warning devices |
CN110384887A (en) * | 2019-06-21 | 2019-10-29 | 山西新思备科技股份有限公司 | A kind of mine hot spot monitoring early warning intelligent positioning fire extinguishing system |
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CN109595037A (en) * | 2019-01-28 | 2019-04-09 | 肥城矿业集团矿业管理服务有限公司 | A kind of security system of coal mining |
CN110379116A (en) * | 2019-05-30 | 2019-10-25 | 广东元一科技实业有限公司 | A kind of alarm system and its alarm method based on Internet of Things |
CN110384887A (en) * | 2019-06-21 | 2019-10-29 | 山西新思备科技股份有限公司 | A kind of mine hot spot monitoring early warning intelligent positioning fire extinguishing system |
CN110363952A (en) * | 2019-08-20 | 2019-10-22 | 宝钢湛江钢铁有限公司 | A kind of contactless early warning system of fire-fighting early stage |
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