CN104599446B - A kind of hazardous gas intelligent monitoring and emergency warning system - Google Patents
A kind of hazardous gas intelligent monitoring and emergency warning system Download PDFInfo
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- CN104599446B CN104599446B CN201510045948.3A CN201510045948A CN104599446B CN 104599446 B CN104599446 B CN 104599446B CN 201510045948 A CN201510045948 A CN 201510045948A CN 104599446 B CN104599446 B CN 104599446B
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Abstract
The present invention relates to a kind of hazardous gas intelligent monitoring and emergency warning system, place multi-section gas detector around hazardous gas pipeline or storage device（1）, multi-section gas detector（1）Networking is carried out by wireless WI FI and be connected with control terminal computer it is characterised in that：According at least three gas detectors hazardous gas spillage is detected at first（1）The self-position data sending and hazardous gas triggered time data, control terminal computer determines the position of hazardous gas spillage point.
Description
Technical field
The present invention relates to a kind of hazardous gas intelligent monitoring and emergency warning system.
Background technology
Develop rapidly with industrial, the place of human contact's toxic and harmful gets more and more, and thereby results in the mankind
The harm of itself is increasing, such as NH3, and H2S, CO2, CO etc. are the modal harmful gass of in the air, during low concentration
Harm can be produced to respiratory system, people's stupor can be caused during high concentration up to death.Each intoxication accident, makes people regain consciousness
Recognize the importance of protection mankind itself safety while developing industry.In addition fuel gas such as natural gas, liquefied petroleum
Gas, coal gas, methane, hydrogen, gasoline gas etc. easily touch flare in atmosphere, and reach meet after finite concentration naked light produce quick-fried
Fried, easily initiation fire or even explosive incident.Therefore various harmful, inflammable gas detectors become during industrial safety produces gradually
Requisite preventer.Gas detector in the market is transmitted using data wire, is not possessing wiring condition
Place be difficult to even cannot use, and typically portable gas detector stand-by time is not it is difficult to be used for long-time work
The place made, and networking can not realize the cooperation of large-scale region to reach large area, safe and reliable data transfer at random.
Wireless gas detection technology is the advanced technique direction in monitoring field.Studied both at home and abroad, industry mechanism and group
The highest attention knitted.Wireless detection of gas technology starts more to be applied to science and engineering research, external Duo Jia mechanism profit
With its learning gas analysis, such as Heidelberg, Germany university, Stanford Univ USA etc..Some instrument companies of developed country also open
Begin for wireless detection of gas technology to be applied to gas-monitoring.Such as Finland VAISALA company, day intrinsic safety found company etc. and are proposed watt
This grade monitoring instrument, Canadian BOREAL LASER company.Developed countries are currently with the reality of detection of gas technology
Application, is only limitted to instrument, the non-online occasion of instrument uses, the not yet on-line monitoring based on wireless detection of gas for the large-scale production
Equipment.
Domestic Project Technical Development Status：Domestic at present have 2～3 research units or company, purchased by special channel
Buy this chip external, manufactured some portable gas detector devices on a small scale, at present it is not yet found that extensive manufacture
Line monitoring device producer and research unit.
1st, domestic and international gas detector and detecting system cannot provide accurate instruction to gas leakage point, also just cannot give
Go out the prompting of accurate direction and the prompting of equipment fault most effective processing method that personnel withdraw.
2nd, domestic and international gas detector cannot indicate leakage point and direction to Field Force.
3rd, status both at home and abroad, wirelessly gas detector is only limitted to hand-held random detection at present, and stand-by time 4-5 is little
When it is impossible to meeting the time of practical work needs, the purpose of 24 hours real-time monitorings can not being reached.
4th, only provide data message, there is no video data, be unable to MANET.
Content of the invention
The present invention devises a kind of hazardous gas intelligent monitoring and emergency warning system, and the technical problem that it solves is：（1）
Gas detector and detecting system cannot provide accurate instruction to gas leakage point both at home and abroad, and the personnel that also just cannot be given withdraw
The prompting of accurate direction and the prompting of equipment fault most effective processing method.（2）Domestic and international gas detector and its detecting system are no
Method indicates leakage point and direction to Field Force.
In order to solve above-mentioned technical problem, present invention employs below scheme：
A kind of hazardous gas intelligent monitoring and emergency warning system, place many around hazardous gas pipeline or storage device
Portion's gas detector（1）, multi-section gas detector（1）Networking is carried out by wireless WI-FI and is connected with control terminal computer,
It is characterized in that：According at least three gas detectors hazardous gas spillage is detected at first（1）The self-position number sending
According to hazardous gas triggered time data, control terminal computer determines the position of hazardous gas spillage point.
Further, when three gas detectors hazardous gas spillage is detected at first（1）Respectively gas detector A,
During gas detector B and gas detector C, the spacing between gas detector A and gas detector B is a, gas detector A
Spacing and gas detector C between is b, and the spacing between gas detector B and gas detector C is c；Hazardous gas pipeline
Or the leakage point of storage device is M（X, y）, the hazardous gas of its release triggers gas detector C at first, set the distance of MC as
l；The hazardous gas second triggering gas detector B of release, sets the distance of MB as l+n, n=v*t1, v are average for hazardous gas
Flow velocity（m/s）, t1 is the time difference between triggering first and for the second time；Hazardous gas the 3rd triggering gas detector A of release,
Set the distance of MA as l+m, m=v*t2, v are hazardous gas mean flow rate（m/s）, t2 is second and third time triggering between
Time difference；According to △ ABC area=△ AMC area+△ AMB area+△ BMC area, wherein △ ABC area is public according to Helen
Formula calculates, and △ AMC area, △ AMB area and △ BMC area reuse Heron's formula respectively and calculated, and according to one
First linear function finally calculates l value；Then, area and the formula △ AMB of △ AMB is calculated according to tri- known sides of △ AMB
Area=a*y*1/2, calculates y value；According to（l+m）2=x2+y2, calculate x value；Finally, hazardous gas pipeline or storage are determined
The leakage point M of device（X, y）Position.
Further, when gas detector hazardous gas spillage is detected（1）Beyond three afterwards, often exceed a gas
Detector（1）, recalculate the leakage point M of hazardous gas pipeline or storage device（X, y）Position and to M before（X, y）
Position be modified.
Further, control terminal computer, according to the position of hazardous gas pipeline or the leakage point of storage device, is determined
The pipeline of existing fault or storage device, and the pipeline of control valve disengagement failure or storage device, start standby delivery pipe simultaneously
Road or spare storage device.
Further, gas detector（1）Including casing, in described casing, it is provided with master controller（11）, described casing front
Upper left-hand is provided with display screen（13）, on the right side of casing front upper, it is provided with keyboard（12）, the described casing back side is provided with battery（15）,
It is provided with Wi-Fi radio transmitting device above described casing（16）, below described casing, it is provided with sensor（16）;Master controller（11）
Respectively with keyboard（12）, display screen（13）, sensor（14）, battery（15）And Wi-Fi radio transmitting device（16）Connect；?
During dangerous gas leakage, in display screen（13）The leakage point M of upper display hazardous gas pipeline or storage device in real time（X, y）
Position withdraw for personnel.
Further, radio detector（1）Carry out networking by following several wireless WI-FI link modes：Gas detector
（1）Directly and LAN（5）Connect；Gas detector（1）By wireless exchange board（4）With LAN（5）Connect；Gas
Detector（1）By repeater（2）With LAN（5）Connect；Gas detector（1）Pass sequentially through repeater（2）With wireless
Base station（3）With LAN（5）Connect；Gas detector（1）Pass sequentially through repeater（2）, wireless base station（3）And wirelessly hand over
Change planes（4）With LAN（5）Connect.
Further, radio detector（1）Select networking mode according to below practical situation choosing：1st, small range is interim monitors directly
It is connected to reception detection data on the notebook have WI-FI AP function；2nd, one can be passed through during small range multiple stage monitor
Wireless router transfers data on the data server of assignment, and multiple stage monitor is monitored simultaneously；3rd, local environment on a large scale
If lower WI-FI has covered this monitoring point, can use and be directly accessed wireless network；4th, on a large scale under local environment if
WI-FI is not covered with monitoring point, can be amplified with repeater and transfer into wireless network；5th, on a large scale under local environment if
WI-FI signal coverage distance is far can be considered to improve coverage by wireless base station；6th, on a large scale under local environment if
WI-FI signal coverage distance is far can be considered with super joint nearby as source, increase wireless router, carry out net mending
Cover, be thus connected to LAN.
Further, when detecting a link open circuit, then link is replaced to carry out data exchange with other, anti-dry to improve
Disturb ability.
Further, automatically it is quickly switched into after losing link in this connection and diagnosing and replace link it is ensured that communicate is real-time
Property.
This hazardous gas intelligent monitoring is had the advantages that with emergency warning system：
（1）Self-position data and hazardous gas triggered time that the present invention is sent by the gas detector of more than three
Data, determines the position of hazardous gas spillage point, is that process and the withdrawing of personnel of accident provides effective reference.
（2）Self-position data and hazardous gas triggered time that the present invention is sent by the gas detector of more than three
Data, determines the position of hazardous gas spillage point, further can be with the pipeline of control valve disengagement failure or storage device, simultaneously
Start standby conveyance conduit or spare storage device, infringement is minimized.
（3）The present invention shows the leakage point of hazardous gas pipeline or storage device on the display screen of gas detector in real time
Position, facilitate withdrawing of personnel.
（4）The present invention is redirected using gas detector multiple spot, multipath redundancy, strong antijamming capability.
（5）The wireless WI-FI network that the present invention adopts has self-organizing, self-healing, self-diagnostic function.
（6）The intensive covering of inventive networkization, conduct monitoring at all levels, reduces monitoring blind area.
Brief description
Fig. 1：Hazardous gas intelligent monitoring of the present invention and the network connection schematic diagram of emergency warning system；
Fig. 2：The calculating schematic diagram of the determination gas leakage point of hazardous gas intelligent monitoring of the present invention and emergency warning system；
Fig. 3：Hazardous gas intelligent monitoring of the present invention and gas detector structural representation in emergency warning system.
Description of reference numerals：
1 gas detector；11 master controllers；12 keyboards；13 display screens；14 sensors；15 batteries；
16 Wi-Fi radio transmitting devices；2 repeaters；3 wireless base stations；4 wireless exchange boards；5 LANs.
Specific embodiment
With reference to Fig. 1 to Fig. 3, the present invention will be further described：
As shown in figure 1, radio detector 1 carries out networking by following several wireless WI-FI link modes：Gas detector
1 is directly connected with LAN 5；Gas detector 1 is connected with LAN 5 by wireless exchange board 4；Gas detector 1 leads to
Cross repeater 2 to be connected with LAN 5；Gas detector 1 passes sequentially through repeater 2 and wireless base station 3 with LAN 5 even
Connect；Gas detector 1 is passed sequentially through repeater 2, wireless base station 3 and wireless exchange board 4 and is connected with LAN 5.
Specifically：
A, detector can be laid at random, network dynamic adjustment.
Radio detector, can after placing detector from charged pool in that context it may be convenient to be placed on the place needing detection
So that networking mode is selected according to practical situation：
1st, the interim monitoring of small range receives detection data on the notebook that can be directly connected to have WI-FI AP function.
2nd, the data, services of assignment can be transferred data to during small range multiple stage monitor by a wireless router
On device, multiple stage monitor is monitored simultaneously.
3rd, on a large scale under local environment if WI-FI has covered this monitoring point, available be directly accessed wireless network
Network.
4th, on a large scale under local environment if WI-FI is not covered with monitoring point, can be transferred into wireless with relaying amplification
Network.
5th, can consider to improve covering model by base station if WI-FI signal coverage distance is far under local environment on a large scale
Enclose.
6th, can consider if WI-FI signal coverage distance is far with super joint nearby under local environment on a large scale
For source, increase wireless router, carry out net mending covering, be thus connected to LAN.
Choose suitable mode, detector can easily be laid, quickly connect access network, network dynamic adjustment
It is not required to want manual intervention.
B, detector multiple spot redirect, multipath redundancy, strong antijamming capability.
Wireless network is inevitably disturbed by some environment, if upper strata link disconnects, is connected to
Equipment thereon cannot communicate.If making the tree-like link structure of complexity, not brisk and easy.For this to overlying roaduay
By the link of device, carry out storing in addition to being usually used, set replacement link.Generally only enter line number in the link being usually used
According to exchange.When detecting the link open circuit to the upper level router being usually used, then carry out data exchange with replacement link, with
Quickly, reliably carry out network connection, improve capacity of resisting disturbance.
C, wireless WI-FI network, have self-organizing, self-healing, self-diagnostic function.
Wireless network is disturbed by some environment, the situation that upper strata link disconnects, if also need to artificial cutting
Change and could recover, then lose the advantage of its quick response.It is thus desirable to network connection has self organization ability, automatic detection net
Network connects and obtains optimum link；There is self diagnostic capability, energy quick response is to strong and weak, the good fast and break-make of network；Self-healing energy
Power, after losing link in this connection and diagnosing automatically be quickly switched into replace link it is ensured that communication real-time.
D, the intensive covering of networking, conduct monitoring at all levels, reduces monitoring blind area.
Due to the complexity of detector working environment, extremely easily cause the shielding of wireless network signal, for reducing monitoring
Blind area, needs the intensive covering of polytype networking.The design allows detector and LAN to be joined directly together；Allow detector
It is connected with relaying；Detector is allowed to be connected with switch；Allow detector and wireless base station contact.To improve, networking is intensive to be covered
Lid, facilitates omnibearing monitoring real time environment.
As shown in Fig. 2 ought detect at first hazardous gas spillage three gas detectors 1 be respectively gas detector A,
During gas detector B and gas detector C, the spacing between gas detector A and gas detector B is a, gas detector A
Spacing and gas detector C between is b, and the spacing between gas detector B and gas detector C is c；Hazardous gas pipeline
Or the leakage point of storage device is M（X, y）, the hazardous gas of its release triggers gas detector C at first, set the distance of MC as
l；The hazardous gas second triggering gas detector B of release, sets the distance of MB as l+n, n=v*t1, v are average for hazardous gas
Flow velocity（m/s）, t1 is the time difference between triggering first and for the second time；Hazardous gas the 3rd triggering gas detector A of release,
Set the distance of MA as l+m, m=v*t2, v are hazardous gas mean flow rate（m/s）, t2 is second and third time triggering between
Time difference；According to △ ABC area=△ AMC area+△ AMB area+△ BMC area, wherein △ ABC area is public according to Helen
Formula calculates, and △ AMC area, △ AMB area and △ BMC area reuse Heron's formula respectively and calculated, and according to one
First linear function finally calculates l value；Then, area and the formula △ AMB of △ AMB is calculated according to tri- known sides of △ AMB
Area=a*y*1/2, calculates y value；According to（l+m）2=x2+y2, calculate x value；Finally, hazardous gas pipeline or storage are determined
The leakage point M of device（X, y）Position.The self-position data being sent by the gas detectors of more than three and hazardous gas
Triggered time data, determines the position of hazardous gas spillage point, is that process and the withdrawing of personnel of accident provides effective ginseng
Examine.
As shown in figure 3, gas detector 1 includes casing, it is provided with master controller 11 in described casing, on described casing front
It is provided with display screen 13 on the left of portion, on the right side of casing front upper, is provided with keyboard 12, the described casing back side is provided with battery 15, described casing
Top is provided with Wi-Fi radio transmitting device 16, is provided with sensor 16 below casing;Master controller 11 respectively with keyboard 12, display
Screen 13, sensor 14, battery 15 and Wi-Fi radio transmitting device 16 connect；When dangerous gas leaks, in display screen
The leakage point M of hazardous gas pipeline or storage device is shown in real time on 13（X, y）Position withdraw for personnel.
Above in conjunction with accompanying drawing, exemplary description is carried out to the present invention it is clear that the present invention's realizes not being subject to aforesaid way
Restriction, as long as employing method of the present invention design and the various improvement that carry out of technical scheme, or not improved by the present invention
Design and technical scheme directly apply to other occasions, all within the scope of the present invention.
Claims (8)
1. a kind of hazardous gas intelligent monitoring and emergency warning system, places multi-section around hazardous gas pipeline or storage device
Gas detector（1）, multi-section gas detector（1）Networking is carried out by wireless WI-FI and is connected with control terminal computer, its
It is characterised by：According at least three gas detectors hazardous gas spillage is detected at first（1）The self-position data sending
With hazardous gas triggered time data, control terminal computer determines the position of hazardous gas spillage point；Danger is detected when at first
Three gas detectors of dangerous gas leakage（1）When being respectively gas detector A, gas detector B and gas detector C, gas
Spacing between body detector A and gas detector B is a, and the spacing between gas detector A and gas detector C is b, gas
Spacing between body detector B and gas detector C is c；The leakage point of hazardous gas pipeline or storage device is M（X, y）, its
The hazardous gas of release triggers gas detector C at first, sets the distance of MC as l；The hazardous gas second triggering gas of release
Detector B, sets the distance of MB as l+n, and n=v*t1, v are hazardous gas mean flow rate, and unit is m/s, and t1 is first with second
Time difference between secondary triggering；Hazardous gas the 3rd triggering gas detector A of release, sets the distance of MA as l+m, m=v*
T2, v are hazardous gas mean flow rate, and unit is m/s, and t2 is second time difference and third time triggering between；According to △ ABC
Area=△ AMC area+△ AMB area+△ BMC area, wherein △ ABC area calculates according to Heron's formula, △ AMC face
Amass, △ AMB area and △ BMC area reuse Heron's formula respectively and calculated, and finally calculated according to linear equation with one unknown
Go out l value；Then, the area of △ AMB is calculated according to tri- known sides of △ AMB, and △ AMB area=a*y*1/2, calculate y
Value；According to（l+m）2=x2+y2, calculate x value；Finally, determine the leakage point M of hazardous gas pipeline or storage device（X, y）'s
Position.
2. according to claim 1 hazardous gas intelligent monitoring and emergency warning system it is characterised in that：When danger is detected
The gas detector of gas leakage（1）Beyond three afterwards, often exceed a gas detector（1）, recalculate hazardous gas
The leakage point M of pipeline or storage device（X, y）Position and to M before（X, y）Position be modified.
3. hazardous gas intelligent monitoring according to claim 1 or claim 2 and emergency warning system it is characterised in that：Control terminal
Computer, according to the position of hazardous gas pipeline or the leakage point of storage device, determines the pipeline or storage device breaking down,
And the pipeline of control valve disengagement failure or storage device, start standby conveyance conduit or spare storage device simultaneously.
4. hazardous gas intelligent monitoring according to claim 1 or claim 2 and emergency warning system it is characterised in that：Gas detecting
Instrument（1）Including casing, in described casing, it is provided with master controller（11）, on the left of described casing front upper, it is provided with display screen（13）,
It is provided with keyboard on the right side of casing front upper（12）, the described casing back side is provided with battery（15）, it is provided with Wi-Fi above described casing no
Line transmitting device（16）, below described casing, it is provided with sensor（14）;Master controller（11）Respectively with keyboard（12）, display screen
（13）, sensor（14）, battery（15）And Wi-Fi radio transmitting device（16）Connect；When dangerous gas leaks,
Display screen（13）The leakage point M of upper display hazardous gas pipeline or storage device in real time（X, y）Position withdraw for personnel.
5. according to claim 4 hazardous gas intelligent monitoring and emergency warning system it is characterised in that：Gas detector
（1）Carry out networking by one of following several wireless WI-FI link modes：Gas detector（1）Directly and LAN（5）Even
Connect；Gas detector（1）By wireless exchange board（4）With LAN（5）Connect；Gas detector（1）By repeater（2）
With LAN（5）Connect；Gas detector（1）Pass sequentially through repeater（2）And wireless base station（3）With LAN（5）Even
Connect；Gas detector（1）Pass sequentially through repeater（2）, wireless base station（3）And wireless exchange board（4）With LAN（5）Even
Connect.
6. according to claim 5 hazardous gas intelligent monitoring and emergency warning system it is characterised in that：Gas detector
（1）One of following networking mode is selected according to practical situation：1st, the interim monitoring of small range is directly connected to WI-FI AP work(
Detection data is received on the notebook of energy；2nd, during small range multiple stage monitor, finger is transferred data to by a wireless router
On the data server joined, multiple stage monitor is monitored simultaneously；3rd, on a large scale under local environment if WI-FI has covered this
Monitoring point is then directly accessed wireless network；4th, on a large scale under local environment if WI-FI is not covered with monitoring point, use repeater
Amplify and transfer into wireless network；5th, on a large scale under local environment if WI-FI signal coverage distance is far, carried by wireless base station
High coverage；6th, on a large scale under local environment if WI-FI signal coverage distance is far, with super joint nearby as source
Head, increases wireless router, carries out net mending covering, be thus connected to LAN.
7. according to claim 6 hazardous gas intelligent monitoring and emergency warning system it is characterised in that：Detecting one
During link open circuit, then link is replaced to carry out data exchange, to improve capacity of resisting disturbance with other.
8. according to claim 7 hazardous gas intelligent monitoring and emergency warning system it is characterised in that：Lose in this connection
Link is simultaneously automatically quickly switched into after diagnosing and replaces link it is ensured that the real-time of communication.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510045948.3A CN104599446B (en) | 2015-01-29 | 2015-01-29 | A kind of hazardous gas intelligent monitoring and emergency warning system |
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| CN201510045948.3A CN104599446B (en) | 2015-01-29 | 2015-01-29 | A kind of hazardous gas intelligent monitoring and emergency warning system |
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| CN104599446B true CN104599446B (en) | 2017-03-08 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106448076A (en) * | 2016-10-31 | 2017-02-22 | 广州市弘宇科技有限公司 | Harmful gas alarm system and harmful gas alarm method |
| CN109922428B (en) * | 2019-03-06 | 2021-01-01 | 山东科技大学 | Quick remote location and emergent guarantee system of dangerous gas leakage source |
| CN111929268B (en) * | 2020-08-15 | 2023-06-23 | 新疆新业能源化工有限责任公司 | Reaction kettle gas leakage monitoring device and positioning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285842A (en) * | 2007-04-10 | 2008-10-15 | 中国国际海运集装箱(集团)股份有限公司 | Dangerous chemical detection and remote alarming device |
| CN101309396A (en) * | 2008-06-27 | 2008-11-19 | 中国安全生产科学研究院 | Emergency cooperative monitoring system for dangerous chemical leakage accident and method thereof |
| CN201876447U (en) * | 2010-06-24 | 2011-06-22 | 中科宇图天下科技有限公司 | Movable emergency detection system for toxic and harmful gas environment |
| KR101245849B1 (en) * | 2011-02-10 | 2013-03-20 | 국민대학교산학협력단 | Method for detecting position of gas leakage for gas pipe |
| CN102314748B (en) * | 2011-07-05 | 2013-01-30 | 万达信息股份有限公司 | Poisonous gas leakage source-locating method based on wireless sensor network |
| CN202267675U (en) * | 2011-08-26 | 2012-06-06 | 北京华清能源科技有限公司 | Wireless intelligent gas detector |
| CN102313793B (en) * | 2011-09-07 | 2014-03-05 | 中国环境科学研究院 | Monitoring system of multi-component gas pollutants in air of chemical industrial park |
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