CN110648506A - Data processing system based on cloud intelligent gateway - Google Patents
Data processing system based on cloud intelligent gateway Download PDFInfo
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- CN110648506A CN110648506A CN201910615787.5A CN201910615787A CN110648506A CN 110648506 A CN110648506 A CN 110648506A CN 201910615787 A CN201910615787 A CN 201910615787A CN 110648506 A CN110648506 A CN 110648506A
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- 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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- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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Abstract
The invention discloses a data processing system based on a cloud intelligent gateway, which relates to the technical field of valve control, and adopts the technical scheme that: the method comprises the following steps: the data detection system is used for detecting any one or more of pressure, flow, temperature and indoor gas concentration in the gas pipeline and various combinations thereof; the execution control system receives data of any one or more of pressure, flow, temperature and indoor gas concentration and various combinations thereof and performs analysis processing; the execution control system is connected with a cloud storage, any one or more of pressure, flow, temperature and indoor gas concentration and various combined data are stored, and a control unit for controlling the on-off of a gas pipeline is arranged on the execution control system. The invention solves the technical problem that the gas leakage is easy to cause danger, and has the advantage of reducing the danger caused by the gas leakage.
Description
Technical Field
The invention relates to the technical field of valve control, in particular to a data processing system based on a cloud intelligent gateway.
Background
The gas is a general name of gas energy, and the gas energy is called clean energy because the gas energy is more fully combusted.
However, the gas is generally toxic, and leakage of the gas causes a disaster, and when the concentration of the gas in the air is low, the gas is less harmful, and when the concentration of the gas is high, the gas may cause harm to human health, and if open fire occurs in the air, the gas may cause fire.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to: the utility model provides a data processing system based on cloud intelligent gateway, it has and reaches prevention gas leakage in advance through data analysis, and then reduces the advantage that gas leaked the risk.
The technical purpose is realized through the following technical scheme, a data processing system based on a cloud intelligent gateway comprises:
the data detection system is used for detecting any one or more of pressure, flow, temperature and indoor gas concentration in the gas pipeline and various combinations thereof;
the execution control system receives data of any one or more of pressure, flow, temperature and indoor gas concentration and various combinations thereof and performs analysis processing;
the execution control system is connected with a cloud storage, and stores data of any one or more of pressure, flow, temperature and indoor gas concentration and various combinations of the pressure, the flow, the temperature and the indoor gas concentration;
and the execution control system is provided with a control unit for controlling the on-off of the gas pipeline.
Through above-mentioned technical scheme, upload to execution control system after detecting pressure, flow, temperature and indoor gas concentration through data detection system to save, when appearing unusually, can carry out the break-make to the gas pipeline through the control unit, close the gas supply of gas, reduced because harm such as gas leakage that gas air feed anomaly or pipeline operating condition's anomaly caused.
Further, the execution control system is a central processing unit, data detected in the data detection system is input into the central processing unit, and the cloud storage is connected to the central processing unit and stores data of any one or more of pressure, flow, temperature and indoor gas concentration and various combinations thereof in the cloud storage.
Through above-mentioned technical scheme, central processing unit's functioning speed is faster, through central processing unit, can accept pressure, flow, temperature and indoor gas concentration after send for cloud memory and save, through long-time accumulation back, can form the database, can learn the change of each item data before the gas leaks through the analysis to data, and then can prevent in advance through data such as detection pressure, flow, temperature.
Furthermore, the central processing unit is electrically connected with a display screen for displaying data of any one or more of pressure, flow, temperature and indoor gas concentration and various combinations thereof.
Through above-mentioned technical scheme, through the demonstration of display screen, pressure, flow, temperature and the indoor gas concentration in the gas pipeline are conveniently monitored, and the valve is conveniently closed in time, reduces the risk that the gas leaked, or reduces the harm after the gas leaked.
Further still include: the detection module is used for sending a leakage signal after detecting gas leakage;
the alarm module is electrically connected to the output end of the detection module and used for receiving the leakage signal and then giving an alarm;
still including the execution module that is used for receiving behind the leakage signal cut-off valve, execution module is including connecting the relay that opens circuit at the detection module output, the normally closed contact and the valve of relay that opens circuit are established ties, alarm module includes signal connection remote alarm unit on the detection module, remote alarm unit receives behind the leakage signal long-range emergence warning, remote alarm unit still includes the control button who is used for controlling the valve and closes.
Through the technical scheme, detection module detects to have gas to leak after leakage signal sends alarm module, the warning through alarm module can let the people learn to have the gas to leak, and take the action of ventilating or keeping away from the gas leakage position, through the normally closed contact of cut-off relay and series connection on the cut-off relay, can close the gas valve after the relay that opens circuit receives the leakage signal, can prevent the gas and continue to supply, and then reduce the leakage quantity of gas, and then the harm of gas leakage has been reduced, can be when indoor nobody is gone through remote alarm, can learn the gas through the long-range and leak and close the valve through control button.
Further, the valve is an electromagnetic valve which is connected with a normally closed contact of the breaking relay in series.
Through above-mentioned technical scheme, the control that the solenoid valve can is more convenient, has reduced the degree of difficulty that mechanical valve passes through circuit drive.
The gas concentration detection device further comprises a reference module used for providing a maximum allowable value of gas concentration and sending a reference signal, and a comparison unit electrically connected to the detection module and the reference module, wherein the comparison unit is used for receiving the leakage signal and the reference signal and sending an over-value signal to the alarm module.
Through the technical scheme, set up the benchmark value through the benchmark module, receive reference signal and leakage signal and carry out the comparison through the comparison unit, when leakage signal exceeds the benchmark value, send the excessive value signal to alarm module, alarm signal will send the warning, let people can learn the leakage of gas, and respond, can let the warning more accurate through the comparison of benchmark value, the signal value that directly will let in the circuit by the size of detected signal detection concentration is by the influence of gas concentration, and then let the circuit unstable easily, through the setting of benchmark value and comparison unit, can let the current behind the comparison unit output more stable.
Furthermore, the output end of the comparison unit is electrically connected to the execution module, and the parallel execution module sends out an over-value signal.
Through the technical scheme, the execution module is convenient to control the valve by the execution module by sending the over-value signal.
Furthermore, the alarm module comprises a buzzer which is electrically connected with the output end of the detection module and is used for sounding after receiving the leakage signal.
Through above-mentioned technical scheme, can let people arouse the warning through the sound of bee calling organ, can wake up the people when the people is asleep, improved the probability that the warning can be learnt by the people.
Furthermore, alarm module sends bright pilot lamp including electric connection at detection module's output and after being used for receiving the leakage signal, the pilot lamp sets up beside the valve.
Through above-mentioned technical scheme, can learn alarm information in the dark through the pilot lamp, it is nearer with the valve distance through the pilot lamp simultaneously, can learn alarm information rear convenience at people and close the valve, prevent that the gas from continuing to leak.
Furthermore, the alarm module comprises a remote alarm unit electrically connected to the detection module, the remote alarm unit comprises a wireless transceiver chip for sending a remote communication signal after receiving the leakage signal, and a server for receiving the wireless transceiver chip, the server is electrically connected with a display screen for displaying alarm information, the reference module (2) comprises a slight reference unit for sending a slight reference signal, a severe reference unit for sending a severe reference signal, and a comparison module comprising a slight comparison unit and a severe comparison unit, wherein the input end of the slight comparison unit is electrically connected to the detection module and the slight reference unit and is used for sending a slight leakage signal after receiving the leakage signal and the slight reference signal, and the input end of the severe comparison unit is electrically connected to the detection module and the severe reference unit, and is used for sending out the serious leakage signal after receiving the leakage signal and the serious reference signal;
the indoor gas concentration of real-time supervision, then in giving the comparison module with the signal transmission of gas concentration, set up two different benchmark values, when gas concentration is higher than lower benchmark value, take place to report to the police, people carry out the manual valve that closes, when gas concentration is higher than higher benchmark value, the self-closing valve.
Through above-mentioned technical scheme, when the valve leaks the place and when the position ratio is more far away apart from people, for example in office building or district, nobody in the family of district, need pass through the control of monitor room, or during the supervision of district managers, the inconvenient alarm information who takes place in the scene of receiving of staff, can learn the gas through the display screen through long-range warning, and break off the response of valve or ventilation, the indoor gas concentration of real-time supervision, then in sending the signal of gas concentration for the comparison module, set up two different benchmark values, when gas concentration is higher than lower benchmark value, take place the warning, people carry out the manual valve that closes, when gas concentration is higher than higher benchmark value, the automatic valve that closes. Through the setting of the slight comparison unit and the serious comparison unit, people can know gas leakage through alarming when slight comparison occurs, and supply of gas is closed through manually closing the valve, when leakage is serious, the valve is closed through automatically cutting off the valve, the valve is automatically closed through electricity, and the valve is difficult to restore the connected state through electric automatic closing, so that the use frequency of closing the valve through a circuit automatic control valve can be reduced through distinguishing the slight leakage from the serious leakage, the valve can be disconnected through manual closing, the recovery use after leakage fault troubleshooting is facilitated, two leakage conditions can be divided through two different reference values, when leakage is more, the valve is emergent to be directly closed, when leakage is less, the valve is manually closed, and the probability of the condition that the valve is difficult to restore due to direct closing can be reduced, through comparing gas concentration and two different benchmark values, can conveniently monitor the gas leakage of not equidimension, leak when less when the gas, through the artificial valve that cuts off, when gas concentration is great, self-closing valve.
In conclusion, the invention has the following technical effects:
1. the detection module is used for detecting the concentration of the fuel gas, the alarm is sent out after the detection module is compared with the reference value, people can know the leakage of the fuel gas, the valve closing time is reduced by closing the valve through the execution module, and the response is more timely;
2. whether the gas leaks and the degree of leakage can be more accurately reported to the police by comparing the detected concentration with the reference value, so that the probability of false alarm caused by less leaked gas during normal use of the gas is reduced, and meanwhile, the situation that the gas leaks but does not report to the police is reduced.
Drawings
FIG. 1 is a partial flow diagram of an embodiment;
FIG. 2 is an overall circuit diagram of the embodiment;
FIG. 3 is a circuit diagram of a valve control system in an embodiment;
fig. 4 is a system diagram of a valve control system in an embodiment.
Reference numerals: 1. a detection module; 2. a reference module; 20. a slight reference cell; 21. a severe reference cell; 3. a comparison module; 30. a slight comparison unit; 31. a severity comparison unit; 4. an alarm module; 40. an indicator light; 41. a buzzer; 42. a remote alarm unit; 43. a valve-breaking relay; 5. an execution module; 50. a breaking relay; 51. starting a relay; 52. a ventilation motor; 53. a valve; 6. a control unit.
Detailed Description
Embodiments, referring to fig. 1, a data processing system based on a cloud intelligent gateway includes: a data detection system, an execution control system, and an abnormality control system.
The data detection system comprises a pressure acquisition module, a flow acquisition module, a temperature acquisition module and a leakage acquisition module.
The pressure acquisition module is the pressure sensor who sets up on the gas pipeline in this embodiment, and the flow acquisition module is the flow sensor who sets up on the gas pipeline, and the temperature acquisition module is the temperature sensor who sets up on the gas pipeline, leaks to acquire the gas concentration sensor that the module is for being used for detecting the gas concentration that leaks.
The execution control system comprises a central processing unit which is electrically connected to the flow sensor, the pressure sensor, the temperature sensor and the gas concentration sensor and used for receiving flow information sent by the flow sensor, pressure information detected by the pressure sensor, temperature information detected by the temperature sensor and concentration information on the gas concentration sensor.
The central processing unit monitors the flow information, the pressure information, the temperature information and the concentration information in real time, and performs data statistics and generates a statistical table according to the information monitored in real time.
The central processing unit is electrically connected with a memory for storing received flow information, pressure information, temperature information and concentration information at regular time.
The central processing unit is electrically connected with a display screen, and statistical data and a statistical table are displayed through the display screen.
The abnormality control system comprises a control unit electrically connected to the central processing unit, the control unit comprises a control relay connected in series to the central processing unit, and a valve arranged on the gas inlet pipeline is connected in series to a normally closed contact of the control relay.
In order to facilitate control over the valve and monitoring of information, the central processing unit is connected to the mobile phone in a remote signal mode, the central processing unit is remotely controlled through the mobile phone, a reference value corresponding to each piece of information is arranged in the central processing unit, when any one of flow information, pressure information, temperature information and concentration information exceeds the reference value, the central processing unit sends alarm information to the mobile phone, the mobile phone is found by a user after receiving the alarm information, a user sends a stop signal to the central processing unit through the mobile phone, and after receiving the stop signal, the central processing unit closes the valve, stops gas supply, and further reduces the risk of gas leakage.
In order to enable the on-off control of the valve to be more timely, the data processing system is further provided with a controller for controlling the on-off of the valve.
The valve control system includes:
the detection module 1: the leakage detection device is realized by a gas concentration sensor and is used for detecting the gas concentration, converting the gas concentration into an electric signal and then sending a leakage signal, wherein the gas concentration sensor and the gas concentration sensor in the leakage acquisition module are the same sensor;
the reference module 2: the device comprises a slight reference unit 20 and a severe reference unit 21, wherein the slight reference unit 20 and the severe reference unit 21 respectively comprise two fixed-value resistors which are connected in series, a reference value is formed by voltage division of the two resistors, and a reference signal is sent out, and the resistance ratio of the two resistors in the slight reference unit 20 is different from that of the two resistors in the severe reference unit 21;
and a comparison module 3: the gas concentration sensor comprises a slight comparison unit 30 and a severe comparison unit 31, wherein the slight comparison unit 30 and the severe comparison unit 31 are both realized through comparators, a forward input end of the slight comparison unit 30 is connected to a gas concentration sensor, a reverse input end of the slight comparison unit 30 is connected to an output end of a slight reference unit 20, a comparison module 3 receives a leakage signal and a slight reference signal and then compares the magnitudes of the leakage signal and the slight reference signal, and when the leakage signal is greater than the slight reference signal, the slight leakage signal is sent out.
The positive input end of the serious comparison unit 31 is connected to the gas concentration sensor, the negative input end of the serious comparison unit 31 is connected to the output end of the serious reference unit 21, the serious comparison unit 31 compares the magnitude of the leakage signal and the serious reference signal after receiving the leakage signal, and when the leakage signal is greater than the serious reference signal, the serious comparison unit sends out a serious leakage signal.
And the alarm module 4: in this embodiment, the alarm module 4 includes a local alarm unit and a remote alarm unit 42, and the local alarm unit includes a triode amplifier connected in series with the output terminal of the severity comparing unit 31, and a buzzer 41 connected in series with the emitter of the triode amplifier.
In order to make the alarm signal more easily received by people, the buzzer 41 is connected with the alarm indicator lamp 40 in parallel, the position of the alarm indicator lamp 40 is arranged beside the valve 53, and after the alarm indicator lamp 40 is found to be turned on in the night, the valve 53 is conveniently found and closed.
The remote alarm module 4 comprises a single chip microcomputer which is connected in series with the output end of the slight comparison module 3 and is in signal connection with the server through a pair of wireless transceiver chips, wherein the model of the single chip microcomputer is AT89C51, and the model of the wireless transceiver chip is nRF 401.
The server is electrically connected with a display screen, the single chip microcomputer receives the slight leakage signal and then transmits the signal to the server through the wireless transmission chip, and the alarm information is displayed through the display screen.
In order to facilitate remote control, the server is also connected with a control button, and when alarm information of gas leakage is displayed on the display screen, the valve 53 is closed through the control button.
The control button sends the disconnected valve signal to the server, and the server sends the signal for the singlechip through wireless transceiver signal, and electric connection has disconnected valve relay 43 that gets electricity after being used for receiving disconnected valve signal on the singlechip, and the normally closed contact of disconnected valve relay 43 establishes ties on valve 53.
The execution module 5: in this embodiment, the execution module 5 includes a triode amplifier connected in series to the severe leakage signal, an emitter of the triode amplifier is connected in series to the cut-off relay 50, a normally closed contact of the cut-off relay 50 is connected in series to the valve 53, the valve 53 is an electromagnetic valve, the electromagnetic valve is turned on in an energized state, and when the electromagnetic valve is turned off, the electromagnetic valve is turned off.
After the triode amplifier receives the serious leakage signal, the triode is conducted, the circuit breaking relay 50 is electrified, the normally closed contact of the circuit breaking relay 50 is disconnected, the electromagnetic valve is powered off, and the electromagnetic valve is closed.
When a serious gas leakage occurs, the gas leakage can be prevented by directly closing the valve 53, shortening the time required for considering the closing of the valve 53.
In order to clean the leaked indoor fuel gas as soon as possible, a ventilation module is further arranged, the ventilation module comprises a ventilation motor 52 and a control switch used for controlling the on-off of the ventilation motor 52, a starting relay 51 is connected to the buzzer 41 in parallel, the control switch is a normally open contact of the starting relay 51, after the triode amplifier receives a serious leakage signal, the triode is conducted, the starting relay 51 is electrified, the control switch is closed, the ventilation fan is started, and the leaked indoor fuel gas is conveyed to the outside.
The specific implementation process, gas concentration sensor detect indoor gas concentration, compare with slight reference cell 20 through slight comparator, and when gas concentration exceeded slight reference cell 20's benchmark value, slight comparison cell 30 transmitted the signal for the singlechip, and the singlechip leads to wireless transceiver chip and transmits the signal for the server, shows alarm information from the display screen after the server received the signal.
When the gas concentration is higher than a serious reference value, the serious comparison unit 31 controls the alarm indicator lamp 40 to be on after the signal is amplified through the triode, the buzzer 41 is generated, the breaking relay 50 and the starting relay 51 are electrified, the control switch is closed, the normally closed contact of the breaking relay 50 is disconnected, the electromagnetic valve is powered off, the electromagnetic valve is closed, the ventilation fan is started, and indoor air circulation is carried out.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a data processing system based on cloud intelligent gateway which characterized in that: the method comprises the following steps:
the data detection system is used for detecting any one or more of pressure, flow, temperature and indoor gas concentration in the gas pipeline and various combinations thereof;
the execution control system receives data of any one or more of pressure, flow, temperature and indoor gas concentration and various combinations thereof and performs analysis processing;
the execution control system is connected with a cloud storage, and stores data of any one or more of pressure, flow, temperature and indoor gas concentration and various combinations of the pressure, the flow, the temperature and the indoor gas concentration;
and the execution control system is provided with a control unit for controlling the on-off of the gas pipeline.
2. The cloud intelligent gateway data processing system of claim 1, wherein: the execution control system is a central processing unit, data detected in the data detection system are input into the central processing unit, the cloud storage is connected to the central processing unit, and the cloud storage stores data of any one or more of pressure, flow, temperature and indoor gas concentration and various combinations of the pressure, the flow, the temperature and the indoor gas concentration in the cloud storage.
3. The cloud intelligent gateway data processing system of claim 2, wherein: the central processing unit is electrically connected with a display screen for displaying any one or more of pressure, flow, temperature and indoor gas concentration and various combined data.
4. The cloud intelligent gateway data processing system of claim 1, wherein: also comprises
The detection module (1) is used for sending a leakage signal after detecting gas leakage;
the alarm module (4) is electrically connected to the output end of the detection module (1) and used for receiving the leakage signal and then sending out an alarm; the method is characterized in that: still including execution module (5) that is used for receiving behind the leakage signal to cut off valve (53), execution module (5) is including connecting at detection module (1) output relay (50) that opens circuit, the normally closed contact of relay (50) that opens circuit is established ties with valve (53), alarm module (4) is including signal connection remote alarm unit (42) on detection module (1), remote alarm unit (42) receive behind the leakage signal long-range emergence warning, remote alarm unit (42) still include the control button that is used for controlling the valve and closes.
5. The cloud intelligent gateway-based data processing system of claim 4, wherein: the valve (53) is an electromagnetic valve connected in series with a normally closed contact of the cut-off relay (50).
6. The cloud intelligent gateway-based data processing system of claim 4, wherein: the gas concentration detection device further comprises a reference module (2) used for providing a maximum allowable value of gas concentration and sending out a reference signal, and a comparison unit electrically connected to the detection module (1) and the reference module (2), wherein the comparison unit is used for receiving the leakage signal and the reference signal and sending out an over-value signal to the alarm module (4).
7. The cloud intelligent gateway-based data processing system of claim 6, wherein: the output end of the comparison unit is electrically connected to the execution module (5), and the parallel execution module (5) sends out an over-value signal.
8. The cloud intelligent gateway-based data processing system of claim 1, wherein: the alarm module (4) comprises a buzzer (41) which is electrically connected with the output end of the detection module (1) and is used for receiving the leakage signal and then sounding.
9. The cloud intelligent gateway-based data processing system of any one of claims 4-8, wherein: alarm module (4) send bright pilot lamp (40) including electric connection at detection module (1)'s output and after being used for receiving the leakage signal, pilot lamp (40) set up beside valve (53).
10. The cloud intelligent gateway-based data processing system of claim 9, wherein: the alarm module (4) comprises a remote alarm unit (42) electrically connected to the detection module (1), the remote alarm unit (42) comprises a wireless transceiver chip for receiving a leakage signal and then sending out a remote communication signal, and a server for receiving the wireless transceiver chip, the server is electrically connected with a display screen for displaying alarm information, the reference module (2) comprises a slight reference unit (20) for sending out a slight reference signal, a severe reference unit (21) for sending out a severe reference signal, the comparison module (3) comprises a slight comparison unit (30) and a severe comparison unit (31), the input end of the slight comparison unit (30) is electrically connected to the detection module (1) and the slight reference unit (20) and is used for sending out a slight leakage signal after receiving the leakage signal and the slight reference signal, the input end of the serious comparison unit (31) is electrically connected with the detection module (1) and the serious reference unit (21) and is used for receiving the leakage signal and the serious reference signal and then sending out a serious leakage signal;
the indoor gas concentration of real-time supervision, then in sending the signal transmission of gas concentration for comparison module (3), set up two different benchmark values, when gas concentration is higher than lower benchmark value, take place to report to the police, people carry out manual shut-off valve (53), when gas concentration is higher than higher benchmark value, self-closing valve (53).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111325951A (en) * | 2020-03-11 | 2020-06-23 | 江苏威尔安智能科技有限公司 | Intelligent control box based on internet of things data transmission |
| 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 |
| CN112071029A (en) * | 2020-09-02 | 2020-12-11 | 东本电气科技(苏州)有限公司 | Gas leakage alarm system and method |
| CN114623281A (en) * | 2021-12-01 | 2022-06-14 | 哈尔滨圣昌科技开发有限公司 | Pipeline prediction analysis alarm system and use method thereof |
| CN114719074A (en) * | 2022-04-18 | 2022-07-08 | 浙江伯特利科技股份有限公司 | Intelligent gas valve operation and maintenance service and overhaul and first-aid repair platform and method |
| CN115484287A (en) * | 2022-09-09 | 2022-12-16 | 廊坊润能燃气设备有限公司 | Gas pipeline indoor control method for realizing temperature and pressure monitoring remote transmission |
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