CN110517456A - A kind of intelligent gas automatically cuts off valve control system and its control method - Google Patents
A kind of intelligent gas automatically cuts off valve control system and its control method Download PDFInfo
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- CN110517456A CN110517456A CN201910625825.5A CN201910625825A CN110517456A CN 110517456 A CN110517456 A CN 110517456A CN 201910625825 A CN201910625825 A CN 201910625825A CN 110517456 A CN110517456 A CN 110517456A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 63
- 239000000567 combustion gas Substances 0.000 description 25
- 238000009423 ventilation Methods 0.000 description 10
- 230000006378 damage Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of intelligent gas to automatically cut off valve control system and its control method, is related to the technical field of valve control, the main points of its technical scheme are that: it include: for detecting the detection module for issuing leakage signal after gas leakage；It is electrically connected at the output end of detection module and to issue the alarm module of alarm after leakage signal further includes execution module for receiving cutting-off valve after leakage signal for receiving, the execution module includes the cut-out relay for being connected to detection module output end, the normally-closed contact of the cut-out relay is connected with valve, the alarm module includes that signal is connected to remote alert unit on detection module, the remote alert unit is remotely alarmed after receiving leakage signal, and the remote alert unit further includes the control button for controling valve closing.The present invention solves gas leakage and be easy to cause dangerous technical problem, and having the advantages that, which reduces gas leakage, causes danger.
Description
Technical field
The present invention relates to valve control technical field, in particular to a kind of intelligent gas automatically cut off valve control system and
Its control method.
Background technique
Combustion gas is the general designation of Gas Energy Source, since the burning of Gas Energy Source is more abundant, so gas energy is called cleaning
The energy.
But combustion gas is generally all toxic, the leakage of combustion gas will become disaster, when gas concentration is lower in air, harm compared with
It is low, it will cause damages to the health of people when the concentration of combustion gas is higher, fire is likely to cause if there is open fire in air
Calamity.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to: a kind of intelligent gas automatic stop valve control is provided
System and its control method processed, it has through the cutting-off valve after combustion gas leaks, and then reaches reduction gas leakage
Amount, thus the advantages of harm reduction.
Above-mentioned technical purpose is achieved through the following technical solutions, and a kind of intelligent gas automatically cuts off valve control system,
It include: for detecting the detection module for issuing leakage signal after gas leakage；
It is electrically connected at the output end of detection module and for receiving the alarm module for issuing alarm after leakage signal；
It further include the execution module for receiving cutting-off valve after leakage signal, the execution module includes being connected to detection module
The normally-closed contact of the cut-out relay of output end, the cut-out relay is connected with valve, and the alarm module includes that signal connects
The remote alert unit on detection module is connect, the remote alert unit is remotely alarmed after receiving leakage signal, described remote
Journey alarm unit further includes the control button for controling valve closing.
Through the above technical solutions, detection module, which has detected, is sent to alarm module for leakage signal after gas leakage,
People can be allowed to have learnt gas leakage by the alarm of alarm module, and take ventilation or the movement far from gas leakage position,
By cut-out relay and the normally-closed contact being connected on cut-out relay, leakage signal can be received in cut-out relay
Afterwards by gas lockout valve, combustion gas can be prevented to continue to supply, and then reduce the leakage rate of combustion gas, thereby reduce gas leakage
Harm, by remote alarms can indoors nobody when, can by remotely learn gas leakage and by control button close
Valve closing door.
Further, the valve is the concatenated solenoid valve of normally-closed contact with cut-out relay.
Through the above technical solutions, solenoid valve can control it is more convenient, reduce machinery valve and pass through circuit drives
Difficulty.
It further, further include the electricity for providing gas concentration maximum permissible value and issuing the base modules of reference signal
Property be connected to the comparing units of detection module and base modules, the comparing unit is for receiving leakage signal and benchmark letter
Number and overflow signal to alarm module sending.
Through the above technical solutions, by base modules be arranged a reference value, by comparing unit receive reference signal and
Leakage signal is simultaneously compared, and when leakage signal is higher by a reference value, issues the signal that overflows to alarm module, alarm signal will be sent out
It alarms out, allows people that can learn the leakage of combustion gas, and make a response, alarm can be allowed more quasi- by the comparison of a reference value
Really, directly the signal value in circuit will be allowed by the influence of gas concentration by the size of detection signal detection concentration, and then be easy
Make circuit unstable, by the setting of a reference value and comparing unit, can allow the subsequent electric current of comparing unit output end more
Stablize.
Further, the output end of the comparing unit is electrically connected in execution module parallel execution module sending and overflows
Signal.
Through the above technical solutions, sending the execution module by the signal that will overflow, facilitate control of the execution module to valve
System.
Further, the alarm module includes being electrically connected at the output end of detection module and for receiving leakage signal
The buzzer of the sound is issued afterwards.
Through the above technical solutions, people can be allowed to cause to warn by the sound of buzzer, can when people sleep soundly incite somebody to action
People wakes, and improves the probability that alarm can be learnt by people.
Further, the alarm module includes being electrically connected at the output end of detection module and for receiving leakage signal
Bright indicator light is issued afterwards, and the indicator light is arranged beside valve.
Through the above technical solutions, can learn warning message in the dark by indicator light, at the same by indicator light with
Valve is closer, and can facilitate closing valve after people learn warning message, and combustion gas is prevented to continue to leak.
Further, the alarm module includes the remote alert unit being electrically connected on detection module, described long-range
Alarm unit includes wireless for receiving the radio transmitting and receiving chip for issuing long-range communication signal after leakage signal, and for receiving
The server of transceiving chip, the server are electrically connected with the display screen for display alarm information.
Through the above technical solutions, when valve leak distance location people position is distant, for example, in office building or
In cell, in the family of cell nobody when, when needing to supervise by the monitoring of monitoring room or cell management personnel, staff is not
The warning message for facilitating the scene of reception to occur, can learn gas leakage by long-range alarm, and break by display screen
The response of valve opening door or ventilation.
Further, the base modules include for issuing the slight reference cell of slight reference signal, for issuing
Serious reference cell, the comparison module of serious reference signal include slight comparing unit and serious comparing unit, described slight
The input terminal of comparing unit is electrically connected at detection module and slight reference cell, and for receiving leakage signal and slight
Issue minor leakage signal after reference signal, the input terminal of the serious comparing unit is electrically connected at detection module and serious
Reference cell, and for issuing serious leak signal after receiving leakage signal and serious reference signal.
Through the above technical solutions, can occurred gently by the setting of slight comparing unit and serious comparing unit
By alarm when micro- comparison, people is allowed to learn gas leakage, and close by the way that valve is turned off manually the supply of combustion gas,
When leaking more serious, closing valve is carried out by automatic cutout valve, had electronic automatic-closing valve to be not easy to make
It restores connected state, is closed so can reduce by the differentiation of minor leakage and serious leak by circuit autocontrol valve
The access times closed can be turned off by the way that valve is turned off manually, and then the recovery after leakage failure investigation is facilitated to use.
Further, the concentration of combustion gas is sent in comparison module by the indoor gas concentration of real-time monitoring, and combustion gas is arranged
Gas concentration maximum value is compared by the maximum value of concentration, comparison module, when actual concentrations are greater than gas concentration maximum value
When, the signal that overflows is issued to alarm module, alarm module issues alert notice people and closes valve.
Through the above technical solutions, determining whether combustion gas has leaked in such a way that the concentration detected is compared with a reference value
And the degree of leakage can more accurately alarm, and reduce the less combustion gas due to leaking when combustion gas normal use
Cause the probability of false alarm, at the same reduce combustion gas have occurred and that leakage but there is no there is a situation where alarm.
Further, then the signal of gas concentration is sent in comparison module by the indoor gas concentration of real-time monitoring,
Two different a reference values are set, when gas concentration is higher than lower a reference value, are alarmed, people carry out hand stop valve
Door, when gas concentration is higher than higher a reference value, automatic-closing valve.
Through the above technical solutions, two kinds of leakage situations can be divided by two different a reference values, it is more when revealing
When it is more urgent, directly valve is closed, when leak it is less when, it is believed that close valve, direct closure valve can be reduced and caused
It is not easy the life probability for the case where replying.
A kind of control method of intelligent gas automatic stop valve: the indoor gas concentration of real-time monitoring, by the concentration of combustion gas
It is sent in comparison module, a reference value of gas concentration is set, gas concentration a reference value is compared by comparison module, works as reality
When border concentration is greater than gas concentration a reference value, the signal that overflows is issued to alarm module, alarm module issues alert notice people and closes
Valve closing door.
Through the above technical solutions, people can be facilitated to learn gas leakage, and make in time by the setting of alarm module
The movement of valve is closed out.
A kind of control method of intelligent gas automatic stop valve, the indoor gas concentration of real-time monitoring are then dense by combustion gas
The signal of degree is sent in comparison module, and two different a reference values are arranged, when gas concentration is higher than lower a reference value, hair
Raw alarm, people carry out that valve is turned off manually, when gas concentration is higher than higher a reference value, automatic-closing valve.
It, can conveniently pair through the above technical solutions, by the way that the gas concentration a reference value different from two to be compared
Different degrees of gas leakage is monitored, when gas leakage is less, by artificial cutting-off valve, when gas concentration is larger
When, automatic-closing valve.
The present invention has following technical effect that in summary
1, the detection to gas concentration is carried out by detection module, people can be allowed by issuing alarm after compared with a reference value
Learn gas leakage, and close valve by execution module to reduce the time required to closing valve, response is much sooner；
2, the degree for determining whether combustion gas leaks and leak in such a way that the concentration detected is compared with a reference value can
It more accurately alarms, reduces since the less combustion gas leaked when combustion gas normal use causes the probability of false alarm,
Simultaneously reduce combustion gas have occurred and that leakage but there is no there is a situation where alarm.
Detailed description of the invention
Fig. 1 is the circuit diagram of embodiment；
Fig. 2 is the system diagram in embodiment.
Appended drawing reference: 1, detection module；2, base modules；20, slight reference cell；21, serious reference cell；3, compare
Module；30, slight comparing unit；31, serious comparing unit；4, alarm module；40, indicator light；41, buzzer；42, long-range report
Alert unit；43, break valve relay；5, execution module；50, cut-out relay；51, starting relay；52, ventilation motor；53, valve
Door.
Specific embodiment
Embodiment, referring to Fig.1, a kind of intelligent gas automatically cuts off valve control system, comprising:
Detection module 1: being realized by gas concentration sensor, for detecting after gas concentration is converted to electric signal by gas concentration
Issue leakage signal；
Base modules 2: including slight reference cell 20 and serious reference cell 21, slight reference cell 20 and serious benchmark list
Member 21 includes two concatenated fixed value resistances, forms an a reference value by the partial pressure of two resistance and issues reference signal,
In slight reference cell 20 in the resistance value ratio of two resistance and serious reference cell 21 resistance value of two resistance ratio difference；
Comparison module 3: including slight comparing unit 30 and serious comparing unit 31, slight comparing unit 30 and serious comparison
Unit 31 realizes that the positive input of slight comparing unit 30 is connected on gas concentration sensor, slightly by comparator
The reverse input end of comparing unit 30 connects the output end of slight reference cell 20, comparison module 3 receive leakage signal and
The size for comparing leakage signal and slight reference signal after slight reference signal, when leakage signal is greater than slight reference signal
When, issue minor leakage signal.
The positive input of serious comparing unit 31 is connected on gas concentration sensor, serious comparing unit 31 it is reversed
Input terminal is connected on the output end of serious reference cell 21, and serious comparing unit 31 receives leakage signal and serious benchmark
Compare the two size after signal, when leakage signal is greater than serious reference signal, issues serious leak signal.
Alarm module 4: in the present embodiment, alarm module 4 includes local alarm unit and remote alert unit 42, locality
Alarm unit includes triode amplifier and being connected on triode amplifier to be connected on serious 31 output end of comparing unit
The buzzer 41 of emitter.
In order to allow alarm signal to be easier to be received by people, alarm lamp 40, alarm lamp are parallel on buzzer 41
40 position setting is on the side of valve 53, after finding that alarm lamp 40 lights in night, conveniently look for see valve 53 and by its
It closes.
Remote alarming module 4 includes the single-chip microcontroller for being connected on slight 3 output end of comparison module, and single-chip microcontroller passes through a pair of of nothing
Line transceiving chip is connect with server signal, the model AT89C51 of single-chip microcontroller, the model of radio transmitting and receiving chip in the present embodiment
For nRF401.
Display screen is electrically connected on server, it, will by wirelessly transferred chip after single-chip microcontroller receives minor leakage signal
Signal sends server to, shows warning message by display screen.
Long-range control for convenience is also connected with control button on server, when showing gas leakage on display screen
When warning message, valve 53 is closed by control button.
The control button issues disconnected valve signal to server, and server sends a signal to list by wireless receiving and dispatching signal
Piece machine is electrically connected on single-chip microcontroller for receiving after disconnected valve signal to obtain electric disconnected valve relay 43, the normal of valve relay 43 of breaking
Closed contact is connected on valve 53.
Execution module 5: execution module 5 includes the triode amplifier being connected on serious leak signal in the present embodiment,
The emitter of triode amplifier is in series with cut-out relay 50, and the normally-closed contact of cut-out relay 50 is connected on valve 53,
Valve 53 is solenoid valve, and under energized state, solenoid valve conduction, when solenoid valve power-off, solenoid valve is closed.
After triode amplifier receives severe leakage signal, triode ON, cut-out relay 50 obtains electric, breaking relay
The normally-closed contact of device 50 disconnects, and solenoid valve power-off, solenoid valve is closed.
When more serious gas leakage occurs, the leakage of combustion gas directly can be prevented by closing valve 53, shortened
The time required to thinking to close valve 53.
For the combustion gas leaked in cleaning chamber as early as possible, it is additionally provided with ventilation module, ventilation module includes ventilation motor
52, and the control switch for controlling 52 on-off of ventilation motor, starting relay 51, control switch are parallel on buzzer 41
For the normally opened contact of starting relay 51, after triode amplifier receives serious leak signal, triode ON starts relay
Device 51 obtains electric, control switch closure, draft fan starting, by the fuel gas transmission of indoor leakage to outdoor.
Specific implementation process, gas concentration sensor detect indoor gas concentration, by slight comparator and slightly
Reference cell 20 is compared, and when gas concentration exceeds a reference value of slight reference cell 20, slight comparing unit 30 is by signal
Pass to single-chip microcontroller, single-chip microcontroller leads to radio transmitting and receiving chip and signal is passed to server, and server receives after signal from display screen
Upper display alarm information.
When gas concentration is higher by serious a reference value, serious comparing unit 31 is by signal by controlling after the amplification of triode
Alarm lamp 40 is bright, and buzzer 41 occurs, and cut-out relay 50 obtains electric, control switch closure, open circuit with starting relay 51
The normally-closed contact of relay 50 disconnects, and solenoid valve power-off, solenoid valve is closed, and draft fan starting carries out indoor air circulation.
A kind of control method of intelligent gas automation stop valve: it referring to Fig. 2, is detected by gas concentration sensor indoor
Gas concentration, and be compared with slight reference cell 20, when gas concentration is more than the benchmark of slight reference cell 20 setting
When value, it was demonstrated that warning message is shown that over the display, people obtain by server by gas leakage, teletransmission to server
After knowing gas leakage, valve 53 is closed.
After gas concentration has been more than a reference value of serious leak reference cell, control alarm lamp 40 is lighted, simultaneously
Control buzzer 41 is remembered, while control valve 53 is closed, while controlling the starting of ventilation motor 52, makes room ventilation, stops combustion
While gas supplies, realizes indoor ventilation, indoor combustion gas is allowed to shed.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of intelligent gas automatically cuts off valve control system, comprising:
For detecting the detection module (1) for issuing leakage signal after gas leakage；
It is electrically connected at the output end of detection module (1) and for receiving the alarm module (4) for issuing alarm after leakage signal；Its
It is characterized in that: further including the execution module (5) for receiving cutting-off valve (53) after leakage signal, execution module (5) packet
Include the cut-out relay (50) for being connected to detection module (1) output end, the normally-closed contact and valve of the cut-out relay (50)
(53) it connects, the alarm module (4) includes that signal is connected to remote alert unit (42) on detection module (1), described long-range
Alarm unit (42) is remotely alarmed after receiving leakage signal, and the remote alert unit (42) further includes for control valve
The control button of closing.
2. intelligent gas according to claim 1 automatically cuts off valve control system, it is characterised in that: the valve (53) is
With the concatenated solenoid valve of normally-closed contact of cut-out relay (50).
3. intelligent gas according to claim 1 automatically cuts off valve control system, it is characterised in that: further include for providing
Gas concentration maximum permissible value and the base modules (2) for issuing reference signal, are electrically connected at detection module (1) and benchmark mould
The comparing unit of block (2), the comparing unit is for receiving leakage signal and reference signal and issuing to alarm module (4) super
Value signal.
4. intelligent gas according to claim 1 automatically cuts off valve control system, it is characterised in that: the comparing unit
Output end is electrically connected on execution module (5) parallel execution module (5) and issues the signal that overflows.
5. intelligent gas according to claim 1 automatically cuts off valve control system, it is characterised in that: the alarm module
It (4) include the buzzer (41) for being electrically connected at the output end of detection module (1) and being used to receive the sending sound after leakage signal.
6. intelligent gas automatically cuts off valve control system according to claim 1 or 5, it is characterised in that: the alarm mould
Block (4) includes being electrically connected at the output end of detection module (1) and for issuing bright indicator light after receiving leakage signal
(40), indicator light (40) setting is beside valve (53).
7. intelligent gas according to claim 1 automatically cuts off valve control system, it is characterised in that: the alarm module
It (4) include the remote alert unit (42) being electrically connected on detection module (1), the remote alert unit (42) includes being used for
The radio transmitting and receiving chip of long-range communication signal, and the service for receiving radio transmitting and receiving chip are issued after reception leakage signal
Device, the server are electrically connected with the display screen for display alarm information.
8. intelligent gas according to claim 1 automatically cuts off valve control system, it is characterised in that: the base modules
It (2) include for issuing the slight reference cell (20) of slight reference signal, the serious benchmark for issuing serious reference signal
Unit (21), comparison module (3) include slight comparing unit (30) and serious comparing unit (31), the slight comparing unit
(30) input terminal is electrically connected at detection module (1) and slight reference cell (20), and for receive leakage signal and
Minor leakage signal is issued after slight reference signal, the input terminal of the serious comparing unit (31) is electrically connected at detection module
(1) and serious reference cell (21), and for issuing serious leak signal after receiving leakage signal and serious reference signal.
9. a kind of control method of intelligent gas automatic stop valve: it is characterized by: the indoor gas concentration of real-time monitoring, will fire
The concentration of gas is sent in comparison module (3), a reference value of gas concentration is arranged, comparison module (3) is i.e. by gas concentration benchmark
Value is compared, and when actual concentrations are greater than gas concentration a reference value, issues the signal that overflows, alarm module to alarm module (4)
(4) alert notice people are issued and closes valve (53).
10. a kind of control method of intelligent gas automatic stop valve: it is characterized by: the indoor gas concentration of real-time monitoring, so
The signal of gas concentration is sent in comparison module (3) afterwards, two different a reference values are set, when gas concentration is higher than lower
A reference value when, alarm, people carry out that valve (53) are turned off manually, when gas concentration be higher than higher a reference value when, from
It is dynamic to close valve (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910625825.5A CN110517456A (en) | 2019-07-11 | 2019-07-11 | A kind of intelligent gas automatically cuts off valve control system and its control method |
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| CN201910625825.5A CN110517456A (en) | 2019-07-11 | 2019-07-11 | A kind of intelligent gas automatically cuts off valve control system and its control method |
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Cited By (2)
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| CN111425766A (en) * | 2020-04-26 | 2020-07-17 | 江苏国安物联网工程技术有限公司 | Gas leakage alarm system based on cloud computing |
| CN116668491A (en) * | 2023-07-21 | 2023-08-29 | 成都秦川物联网科技股份有限公司 | Intelligent gas safety risk prevention and control method based on alarm and Internet of things system |
| CN116668491B (en) * | 2023-07-21 | 2023-10-31 | 成都秦川物联网科技股份有限公司 | Intelligent gas safety risk prevention and control method based on alarm and Internet of things system |
| US12008883B2 (en) | 2023-07-21 | 2024-06-11 | Chengdu Qinchuan Iot Technology Co., Ltd. | Alarm-based prevention and control method, internet of things system, and medium for safety risk of smart gas |
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