CN104989950B - Combustion gas condition monitoring system - Google Patents
Combustion gas condition monitoring system Download PDFInfo
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- CN104989950B CN104989950B CN201510392113.5A CN201510392113A CN104989950B CN 104989950 B CN104989950 B CN 104989950B CN 201510392113 A CN201510392113 A CN 201510392113A CN 104989950 B CN104989950 B CN 104989950B
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Abstract
The present invention provides one kind allows the people can be easily,The combustion gas condition monitoring system of domestic gas service condition is understood in real time,The system includes flow sensor,Data acquisition chip,First microprocessor,First transport module,Power module and at least one APP mobile terminals,APP mobile terminals include the first data transmit-receive module,Second microprocessor,Storage module,Check request module and human-computer interface module,Flow sensor is connected with data acquisition chip,Data acquisition chip is connected with first microprocessor,First microprocessor is connected with the first transport module,First microprocessor is connected with power module,First data transmit-receive module is connected with the first transport module,First data transmit-receive module is connected with the second microprocessor,Second microprocessor is connected with storage module,Second microprocessor with check request module and be connected,Second microprocessor is connected with human-computer interface module；The present invention is applied to monitoring field.
Description
Technical field
The present invention relates to monitoring field, more particularly to a kind of combustion gas condition monitoring system.
Background technology
At present, the fuel gas such as natural gas, coal gas, liquefied gas has relatively broad application in production and sphere of life；
In recent years, because a variety of causes causes the serious accident that combustion gas triggers so that people to the attention rate of domestic gas use state not
It is disconnected to rise, particularly with working clan for, constantly miss the service condition of family combustion gas, not only worry into worry, and can influence
Operating efficiency, therefore, the use state for how allowing people easily can whenever and wherever possible understand domestic gas is particularly important.
The content of the invention
The present invention overcomes the shortcomings of that prior art is present, and technical problem to be solved is：There is provided one kind allows the people can
Easily, the combustion gas condition monitoring system of domestic gas service condition is understood in real time.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：Combustion gas condition monitoring system, including：Stream
Quantity sensor：In the magnetic valve of gas pipeline, for detecting flow value when combustion gas is used；Data acquisition chip：With institute
Flow sensor connection is stated, flow value and use time are used for gathering the combustion gas that the flow sensor detection is obtained；The
One microprocessor：It is connected with the data acquisition chip, for receiving and analyzing the combustion gas that the data acquisition chip is collected
Use flow and use time data；First transport module：It is connected with the first microprocessor, it is micro- for transmitting described first
Combustion gas after processor analysis uses flow and use time data；Power module：It is connected with the first microprocessor, is used for
For the first microprocessor is powered；At least one APP mobile terminals, the APP mobile terminals include：First data are received
Hair module：It is connected with first transport module, for receiving the combustion gas of the first transport module transmission using flow and making
Use time data；Second microprocessor：It is connected with first data transmit-receive module, for receiving, analyzing and uploading described
The combustion gas of one data transmit-receive module transmission uses flow and use time data；Storage module：Connect with second microprocessor
Connect, flow and use time data are used for storing combustion gas；Check request module：It is connected with second microprocessor, is used
Data request command is checked in being sent to second microprocessor；Human-computer interface module：It is connected with second microprocessor,
For showing that combustion gas uses flow and use time data.
Preferably, the APP mobile terminals also include：Second transport module：It is connected with second microprocessor, is used for
Combustion gas is uploaded to high in the clouds using flow and use time data；Login module：Be connected with second microprocessor, for
Second microprocessor sends logging request, logs on to high in the clouds and carry out data to check；The system also includes：Cloud service is put down
Platform：It is connected with second transport module, for combustion gas to be used into flow and use time data storage in high in the clouds.
Preferably, the cloud service platform is also connected with the storage module, for by combustion gas is using flow and uses
Time data is downloaded to the storage module and carries out secondary storage.
Preferably, the system also includes：Positioning active module：It is connected with the first microprocessor, for receiving
State the location control order of first microprocessor transmission；At least one associated AP P mobile terminals, the associated AP P mobile terminals
Including：Second data transmit-receive module：It is connected with first transport module, the combustion for receiving the first transport module transmission
Gas uses flow and use time data；3rd microprocessor：It is connected with second data transmit-receive module, for receiving, is divided
The combustion gas for analysing and uploading the second data transmit-receive module transmission uses flow and use time data；3rd transport module：With
3rd microprocessor and the cloud service platform are connected, for combustion gas to be uploaded to using flow and use time data
High in the clouds；The APP mobile terminals also include：Locating module：It is connected with the positioning active module and second microprocessor,
For being positioned to the APP mobile terminals；Associated AP P active modules：With second microprocessor and described 3rd micro-
Processor connect, for when APP mobile terminals are not in the transmission range of the first transport module, activation be located at first transmission mould
The combustion gas that associated AP P mobile terminals in block transmission range receive the transmission of the first transport module uses flow and use time number
According to.
Preferably, the system also includes：Gas sensor：Near indoor gas pipeline, for detecting interior
Gas concentration；The data acquisition chip is also connected with the gas sensor (401), the gas concentration for gathering interior
Value；Solenoid valve control module：It is connected with the first microprocessor, for receiving the action of control command drive magnetic valve；Alarm
Module：It is connected with the first microprocessor, for the alert when indoor gas concentration is higher than setting value.
Preferably, the system also includes：Time block：It is connected with the first microprocessor, for setting combustion gas
Use time is allowed, when the time period that combustion gas is used reaches setting value, the electromagnetism is controlled by the first microprocessor
Valve control module drive magnetic valve turns off gas pipeline.
The present invention has the advantages that compared with prior art：
1st, the combustion gas condition monitoring system in the present invention, mainly by flow sensor, data acquisition chip, the first microprocessor
Device, the first transport module and at least one APP mobile terminals composition, and APP mobile terminals it is main by the first data transmit-receive module,
Second microprocessor, storage module, check request module and human-computer interface module composition；Flow sensor measures combustion gas in real time to be made
After the flow value of used time, flow information is sent to data acquisition chip, data acquisition chip records the time that combustion gas is used
After flow, transferring data to first microprocessor carries out conversion process, and the data after treatment are passed by the first transport module
APP mobile terminals are delivered to, after the first data transmit-receive module in APP mobile terminals receives data, second is sent the data to
Microprocessor, the second microprocessor is sent to storage module and is stored after data are processed, and user is by checking request
Module, can send to the second microprocessor and check that combustion gas status data is asked at any time, and the second microprocessor will storage after receiving request
The data message stored in storing module is sent to human-computer interface module and is shown, so, people can easily, whenever and wherever possible
Domestic gas service condition is understood in real time.
2nd, the APP mobile terminals in the present invention also include login module and the second transport module, when the second microprocessor will
Treated combustion gas status information is sent to storage module when entering to store, and is also uploaded to synchronizing information by the second transport module
Cloud service platform, user can log on to high in the clouds and carry out data to check, not only facilitate but also ensured that data are not lost by login module
Lose.
3rd, system of the invention also includes positioning active module and at least one associated AP P mobile terminals, associated AP P movements
Terminal includes the 3rd microprocessor and the 3rd transport module, and APP mobile terminals also include locating module and associated AP P activation moulds
Block, when carry APP mobile terminals user be on duty during or leave home farther out and cannot receive the first transport module transmission
Combustion gas status information when, the first transport module can pass information to neighbouring associated AP P mobile terminals, associated AP P movements
Data are uploaded to cloud service platform by terminal, and user can log on to high in the clouds and carry out data to check by login module.
4th, present invention additionally comprises gas sensor, solenoid valve control module, alarm module and time block, passed by gas
Whether sensor detection combustion gas is leaked, if leakage, magnetic valve is closed in first microprocessor control solenoid valve control module action, and
Alarmed, additionally, can also set the permission use time of combustion gas by time block, prevent personnel's poisoning, blast etc. pernicious
The generation of accident.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings；
Fig. 1 is the structural representation of the preferred embodiment of the present invention；
In figure：101 is flow sensor, and 102 is data acquisition chip, and 103 is first microprocessor, and 104 is the first biography
Defeated module, 105 is power module, and 106 is APP mobile terminals, and 107 is the first data transmit-receive module, and 108 is the second microprocessor
Device, 109 is storage module, and 110 to check request module, and 111 is human-computer interface module, and 201 is login module, and 202 is second
Transport module, 203 is cloud service platform, and 301 is positioning active module, and 302 is associated AP P mobile terminals, and 303 is the 3rd micro-
Processor, 304 is the 3rd transport module, and 305 is locating module, and 306 is associated AP P active modules, and 307 is the second data transmit-receive
Module, 401 is gas sensor, and 402 is solenoid valve control module, and 403 is alarm module, and 501 is time block.
Specific embodiment
As shown in figure 1, the combustion gas condition monitoring system in the present embodiment includes flow sensor 101, data acquisition chip
102nd, first microprocessor 103, the first transport module 104, the APP mobile terminal 1s 06 of power module 105 and at least one, in order to
One APP mobile terminal 1 06 is only shown in the succinct the present embodiment of view, and every APP mobile terminal 1s 06 include the first data
Transceiver module 107, the second microprocessor 108, storage module 109, check request module 110 and human-computer interface module 111；Flow
Sensor 101 is located in the magnetic valve of gas pipeline, for detecting flow value when combustion gas is used；Data acquisition chip 102 with
The flow sensor 101 is connected, and in the present embodiment, data acquisition chip 102 has time calibration function, can remember in real time
Record Beijing time data, can be consequently used for gathering the flow sensor 101 and detect the combustion gas for obtaining using flow value and make
Use the time；First microprocessor 103 is connected with the data acquisition chip 102, for receiving and analyzing the data acquisition core
The combustion gas that piece 102 is collected uses flow and use time data；First transport module 104 and the first microprocessor 103
Connection, flow and use time data are used for transmitting the combustion gas after the first microprocessor 103 is analyzed；Power module
105：It is connected with the first microprocessor 103, for being powered for the first microprocessor 103；First data transmit-receive
Module 107 is connected with first transport module 104, and the combustion gas for receiving the transmission of the first transport module 104 uses stream
Amount and use time data；Second microprocessor 108 is connected with first data transmit-receive module 107, for receiving, analyze and
The combustion gas for uploading the transmission of the first data transmit-receive module 107 uses flow and use time data；Storage module 109 with it is described
Second microprocessor 108 is connected, and flow and use time data are used for storing combustion gas；Check request module 110 with it is described
Second microprocessor 108 is connected, and data request command is checked for being sent to second microprocessor 108；Man-machine interface mould
Block 111 is connected with second microprocessor 108, for showing that combustion gas uses flow and use time data.
In the present embodiment, also can be by data acquisition chip 102, first microprocessor 103, the first transport module 104 and electricity
Source module 105 is arranged in the magnetic valve on gas pipeline together；Specifically, the flow sensor 101 can be piezoelectricity
Stress-type sensor；Specifically, first transport module 104 can be Bluetooth communication modules, and the power consumption of Bluetooth transmission is relatively low, anti-
Interference performance is strong, propagation distance is long, and the radiation pattern of pulsed causes that security is higher, and overcomes with dry cell as power supply
Problem；Specifically, power module 105 can use battery so that first microprocessor 103 is simple and square without external power supply
Just；During work, the flow value when real-time detection combustion gas of flow sensor 101 is used sends flow information to data acquisition core
Piece 102, after data acquisition chip 102 records the time that combustion gas uses and flow, transfers data to first microprocessor 103
Treatment is analyzed, the data after analysis are delivered to APP mobile terminal 1s 06, APP mobile terminals by the first transport module 104
After the first data transmit-receive module 107 in 106 receives data, the second microprocessor 108, the second microprocessor are sent the data to
Device 108 is sent to storage module 109 and is stored after data are analyzed, user, can be at any time by checking request module 110
The request for checking combustion gas status data is sent to the second microprocessor 108, the second microprocessor 108 will store mould after receiving request
The data message stored in block 109 is sent to human-computer interface module 111 and is shown.
In the present embodiment, the APP mobile terminal 1s 06 may also include the transport module 202 of login module 201 and second, institute
The system of stating may also include cloud service platform 203；Second transport module 202 is connected with second microprocessor 108, for inciting somebody to action
Combustion gas is uploaded to high in the clouds using flow and use time data；Login module 201 is connected with second microprocessor 108, uses
In logging request is sent to second microprocessor 108, log on to high in the clouds and carry out data to check；Cloud service platform 203 with
Second transport module 202 is connected, for combustion gas to be used into flow and use time data storage in high in the clouds；When second micro- place
When treated combustion gas status information is sent to storage module 109 and enters to store by reason device 108, while can be by the second transport module
Synchronizing information is uploaded to cloud service platform 203 by 202, and user can log on to high in the clouds and carry out data to look into by login module 201
See；Specifically, the cloud service platform 203 can also be connected with the storage module 109, for by combustion gas is using flow and makes
The storage module 109 is downloaded to time data carries out secondary storage, and double insurance is stored and causes that data are not easy to lose.
In the present embodiment, the system may also include the positioning associated AP P mobile terminals of active module 301 and at least one
302, the APP mobile terminal 1s 06 may also include locating module 305 and associated AP P active modules 306, for the succinct sheet of view
One associated AP P mobile terminal 302 is only shown, the associated AP P mobile terminals 302 may include the second data transmit-receive in embodiment
Module 307, the 3rd microprocessor 303 and the 3rd transport module 304；Positioning active module 301 and the first microprocessor 103
Connection, the location control order for receiving the transmission of the first microprocessor 103；Second data transmit-receive module 307 with it is described
First transport module 104 is connected, and the combustion gas for receiving the transmission of the first transport module 104 uses flow and use time number
According to；3rd microprocessor 303 is connected with second data transmit-receive module 307, for receiving, analyzing and uploading second number
The combustion gas transmitted according to transceiver module 307 uses flow and use time data；3rd transport module 304 and the 3rd microprocessor
Device 303 and the cloud service platform 203 are connected, for combustion gas to be uploaded into high in the clouds using flow and use time data；It is fixed
Position module 305 is connected with the positioning active module 301 and second microprocessor 108, for the APP mobile terminals
106 are positioned；Associated AP P active modules 306 are connected with second microprocessor 108 and the 3rd microprocessor 303,
For when APP mobile terminal 1s 06 are not in the transmission range of the first transport module 104, activation be located at the first transport module 104
The combustion gas that associated AP P mobile terminals 302 in transmission range receive the transmission of the first transport module 104 uses flow and use time
Data；After combustion gas status information is passed to first microprocessor 103 by data acquisition chip 102, first microprocessor 103 is given
Positioning active module 301 sends order, and the positioning activation locating module 305 of active module 301 is determined APP mobile terminal 1s 06
Location information is simultaneously transferred to the second microprocessor 108 by position, and the second microprocessor 108 differentiates APP movements eventually according to location information
Whether in transmission range, when APP mobile terminal 1s 06 are in transmission range, first microprocessor 103 directly passes through at end 106
First transport module 104 transmits data to APP mobile terminal 1s 06, during the user for carrying APP mobile terminal 1s 06 is on duty
Or leave home farther out and cannot receive the first transport module 105 transmission combustion gas status information when, the second microprocessor 108 is given
Associated AP P active modules 306 send order, and associated AP P active modules 306 activate neighbouring associated AP P mobile terminals 302, make
Obtain the second data transmit-receive module that the first transport module 104 can be passed information in neighbouring associated AP P mobile terminals 306
307, the second data transmit-receive module 307 is sent to the 3rd microprocessor 303 after receiving data, and the 3rd microprocessor 303 is by the
Data are uploaded to cloud service platform 203 by three transport modules 304, and user can log on to high in the clouds by login module 201 to be carried out
Data are checked, in the present embodiment, in the transmission range of the first transport module 104, and simply by the presence of the APP mobile terminals of association,
So anywhere user can just log in APP from high in the clouds downloading data, check the service condition of oneself family's combustion gas.
In the present embodiment, the system may also include：Gas sensor 401, solenoid valve control module 402 and alarm module
403；Gas sensor 401 is located near indoor gas pipeline, the gas concentration for detecting interior；The data acquisition core
Piece 102 is also connected with the gas sensor 401, the gas concentration value for gathering interior；Solenoid valve control module 402 and institute
State first microprocessor 103 to connect, for receiving the action of control command drive magnetic valve；Alarm module 403 is micro- with described first
Processor 103 is connected, for the alert when indoor gas concentration is higher than setting value；During work, gas sensor
Whether 401 real-time monitorings have gas leakage, and monitoring information is sent into data acquisition chip 102, and data acquisition chip 102 is passed
First microprocessor 103 is passed, after the processing information of first microprocessor 103, if finding gas leakage, solenoid valve control is controlled
Module 402 is acted, the closed electromagnetic valve on the control gas pipeline of solenoid valve control module 402, meanwhile, alarm module 403 is carried out
Alarm, prevents the generation of major accident；In addition, the system may also include：Time block 501, the time block 501
The form of control panel is can be made into, time block 501 is connected with the first microprocessor 103, the permission for setting combustion gas
Use time, when the time period that combustion gas is used reaches setting value, the magnetic valve is controlled by the first microprocessor 103
The drive magnetic valve of control module 402 turns off gas pipeline.
A kind of new monitoring system that can in real time understand combustion gas state is provided in the present invention, the system can monitor in real time
The service condition of combustion gas, and can be real-time by the use state of domestic gas by the transmission technologys such as bluetooth, APP high in the clouds function
Pass to user, with prominent substantive distinguishing features and significant progressive；User can be according to these information analyses and contrast certainly
The service condition of home fuel gas, and then draw optimal operational version, additionally, the problem such as the supply and demand of China city gas, scheduling is needed
Based on wanting mass data, natural gas companies register one's residence the practical difficulty and cost checked meter a series of problems, such as require it is a kind of more
Be convenient, reliable data collection and analysis system, the present invention can as solve this problems such as a point of penetration, can pass through
Multiple elementary cells are collected data summarization to high in the clouds and carry out big data analysis, and assistance has the shutting mechanism to carry out decision-making；Above in conjunction with attached
Figure is explained in detail to embodiments of the invention, but the present invention is not limited to above-described embodiment, in ordinary skill
In the ken that personnel possess, can also various changes can be made on the premise of present inventive concept is not departed from.
Claims (7)
1. combustion gas condition monitoring system, it is characterised in that：Including：
Flow sensor（101）：In the magnetic valve of gas pipeline, for detecting flow value when combustion gas is used；
Data acquisition chip（102）：With the flow sensor（101）Connection, for gathering the flow sensor（101）Inspection
The combustion gas for measuring uses flow value and use time；
First microprocessor（103）：With the data acquisition chip（102）Connection, for receiving and analyzing the data acquisition
Chip（102）The combustion gas for collecting uses flow and use time data；
First transport module（104）：With the first microprocessor（103）Connection, for transmitting the first microprocessor
（103）Combustion gas after analysis uses flow and use time data；
Power module（105）：With the first microprocessor（103）Connection, for being the first microprocessor（103）Carry out
Power supply；
At least one APP mobile terminals（106）, the APP mobile terminals（106）Including：
First data transmit-receive module（107）：With first transport module（104）Connection, for receiving the first transmission mould
Block（104）The combustion gas of transmission uses flow and use time data；
Second microprocessor（108）：With first data transmit-receive module（107）Connection, it is described for receiving, analyzing and upload
First data transmit-receive module（107）The combustion gas of transmission uses flow and use time data；
Storage module（109）：With second microprocessor（108）Connection, flow and use time are used for storing combustion gas
Data；
Check request module（110）：With second microprocessor（108）Connection, for second microprocessor（108）
Data request command is checked in transmission；
Human-computer interface module（111）：With second microprocessor（108）Connection, for showing combustion gas using flow and using
Time data；
The APP mobile terminals（106）Also include：
Second transport module（202）：With second microprocessor（108）Connection, for by combustion gas using flow and when using
Between data be uploaded to high in the clouds；
Login module（201）：With second microprocessor（108）Connection, for second microprocessor（108）Send
Logging request, logs on to high in the clouds and carries out data to check；
The system also includes：
Cloud service platform（203）：With second transport module（202）Connection, for by combustion gas is using flow and uses
Time data is stored in high in the clouds；
The system also includes：
Positioning active module（301）：With the first microprocessor（103）Connection, for receiving the first microprocessor
（103）The location control order of transmission；
At least one associated AP P mobile terminals（302）, the associated AP P mobile terminals（302）Including：
Second data transmit-receive module（307）：With first transport module（104）Connection, for receiving the first transmission mould
Block（104）The combustion gas of transmission uses flow and use time data；
3rd microprocessor（303）：With second data transmit-receive module（307）Connection, it is described for receiving, analyzing and upload
Second data transmit-receive module（307）The combustion gas of transmission uses flow and use time data；
3rd transport module（304）：With the 3rd microprocessor（303）With the cloud service platform（203）Connection, is used for
Combustion gas is uploaded to high in the clouds using flow and use time data；
The APP mobile terminals（106）Also include：
Locating module（305）：With the positioning active module（301）With second microprocessor（108）Connection, for institute
State APP mobile terminals（106）Positioned；
Associated AP P active modules（306）：With second microprocessor（108）With the 3rd microprocessor（303）Even
Connect, for when APP mobile terminals（106）Not in the first transport module（104）Transmission range in when, activation be located at first pass
Defeated module（104）Associated AP P mobile terminals in transmission range（302）Receive the first transport module（104）The combustion gas of transmission
Use flow and use time data.
2. combustion gas condition monitoring system according to claim 1, it is characterised in that：The cloud service platform（203）Also
With the storage module（109）Connection, for combustion gas to be downloaded into the storage module using flow and use time data
（109）Carry out secondary storage.
3. the combustion gas condition monitoring system according to claim 1, it is characterised in that：The system also includes：
Gas sensor（401）：Near indoor gas pipeline, the gas concentration for detecting interior；The data are adopted
Collection chip（102）Also with the gas sensor（401）Connection, the gas concentration value for gathering interior；
Solenoid valve control module（402）：With the first microprocessor（103）Connection, electromagnetism is driven for receiving control command
Valve events；
Alarm module（403）：With the first microprocessor（103）Connection, for being higher than setting value when indoor gas concentration
When alert.
4. combustion gas condition monitoring system according to claim 3, it is characterised in that：The system also includes：
Time block（501）：With the first microprocessor（103）Connection, the permission use time for setting combustion gas works as combustion
When the time period that gas is used reaches setting value, by the first microprocessor（103）Control the solenoid valve control mould
Block（402）Drive magnetic valve turns off gas pipeline.
5. the combustion gas condition monitoring system according to claim 1, it is characterised in that：The flow sensor（101）For
Piezoelectric stress formula sensor.
6. the combustion gas condition monitoring system according to claim 1, it is characterised in that：First transport module（104）
It is Bluetooth communication modules.
7. the combustion gas condition monitoring system according to claim 1, it is characterised in that：The power module（105）It is electricity
Pond.
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| CN201510392113.5A CN104989950B (en) | 2015-07-06 | 2015-07-06 | Combustion gas condition monitoring system |
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| CN104989950B true CN104989950B (en) | 2017-07-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105299466A (en) * | 2015-11-10 | 2016-02-03 | 苏州美达瑞电子有限公司 | Intelligent household fuel gas management system based on Linux |
| CN105824277A (en) * | 2016-03-08 | 2016-08-03 | 厦门合创成电子科技有限公司 | Remote monitoring linkage gas alarm system |
| CN106444533A (en) * | 2016-11-17 | 2017-02-22 | 江苏智石科技有限公司 | Photovoltaic home gas monitoring system based on three-stage amplifier circuit |
| CN107036662A (en) * | 2017-06-22 | 2017-08-11 | 广西壮族自治区环境保护科学研究院 | A kind of carbon emission monitoring system |
| CN111090245A (en) * | 2019-12-31 | 2020-05-01 | 上海移远通信技术股份有限公司 | Intelligent gas monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3933168B2 (en) * | 2005-03-01 | 2007-06-20 | 松下電器産業株式会社 | Gas shut-off device |
| JP5248131B2 (en) * | 2008-02-06 | 2013-07-31 | 矢崎エナジーシステム株式会社 | Deterioration detection device, gas meter, portable terminal, and centralized monitoring system |
| CN201281168Y (en) * | 2008-10-10 | 2009-07-29 | 华北电力大学（保定） | Valve capable of outputting flow signal |
| CN103471675A (en) * | 2013-09-29 | 2013-12-25 | 成都秦川科技发展有限公司 | Cutting type diaphragm gas meter |
| CN204029119U (en) * | 2014-08-25 | 2014-12-17 | 无锡盈达聚力科技有限公司 | For monitoring the warning system of inflammable gas |
| CN104504840A (en) * | 2014-11-07 | 2015-04-08 | 杭州赫智电子科技有限公司 | Smoke alarm system and alarm method |
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