CN108550250A - A kind of gas meter, flow meter system with dismounting warning function - Google Patents
A kind of gas meter, flow meter system with dismounting warning function Download PDFInfo
- Publication number
- CN108550250A CN108550250A CN201810658668.3A CN201810658668A CN108550250A CN 108550250 A CN108550250 A CN 108550250A CN 201810658668 A CN201810658668 A CN 201810658668A CN 108550250 A CN108550250 A CN 108550250A
- Authority
- CN
- China
- Prior art keywords
- module
- flow meter
- gas
- gas meter
- wireless communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000004891 communication Methods 0.000 claims abstract description 52
- 239000011159 matrix material Substances 0.000 claims abstract description 26
- 230000006870 function Effects 0.000 claims description 18
- 239000007789 gas Substances 0.000 abstract description 71
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 239000003345 natural gas Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 239000000567 combustion gas Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 208000035795 Hypocalcemic vitamin D-dependent rickets Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 208000033584 type 1 vitamin D-dependent rickets Diseases 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/001—Means for regulating or setting the meter for a predetermined quantity
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention provides a kind of gas meter, flow meter systems with dismounting warning function, and there is angle-sensor module, the angle-sensor module to be connect with single chip communication.After gas meter, flow meter matrix is mounted on gas pipeline; opening angle sensor assembly; as long as gas meter, flow meter matrix is in disassembly process; its angle of inclination meets or exceeds preset value; gas meter, flow meter system just sends out alarm, and by the transporting function of the first wireless communication module, by warning message remote transmission to gas company's background system; achieve the purpose that early warning, protects the legitimate rights and interests of gas company.In addition the gas meter, flow meter system also has methane warning module, and gas leakage alarm can occur indoors, ensure the safe to use of natural gas.
Description
Technical field
The present invention relates to gas meter, flow meter fields, and in particular to a kind of gas meter, flow meter system with dismounting warning function.
Background technology
With the change of energy resource structure, natural gas has been widely applied to as a kind of clean energy resource in daily life.
Gas phenomenon is stolen because of combustion gas to happen occasionally, the continual upgrading gas meter, flow meter of gas meter, flow meter producer increases various protection work(
Can, such as anti-decomposing lid, the anti-theft gaseous performance of gas meter, flow meter is improved in certain degree.But there are individual criminals directly will
Gas meter, flow meter integrally removes, and gas pipeline is docked, and this robber's gas method, anti-decomposing lid cannot play a protective role.
Some gas meter, flow meter producers increase ball switch sensor, when reaching certain angle in gas meter, flow meter disassembly process, roll
Pearl switch is closed, and sends out switching signal, and gas meter, flow meter is alarmed using transporting function.But this ball switch error is big, error reaches
To 15 degree or more, if gas meter, flow meter acts variation less in disassembly process, cannot effectively alarm.
In view of this, special propose the present invention.
Invention content
The object of the present invention is to provide a kind of gas meter, flow meter systems with dismounting warning function, solve to exist in the prior art
The problem of.
To achieve the goals above, a kind of gas meter, flow meter system with dismounting warning function provided by the invention comprising：
Matrix and controller, the controller are located in the accommodating space of described matrix, and described matrix is connected with gas pipeline, sets
There are valve and first voltage management module, be used for the first controller described in phase and power, first controller includes first single
Piece machine and the valve control module communicated to connect respectively with the first singlechip, the first memory module, are shown sample count module
Show module, the first sound alarm module and the first wireless communication module；First wireless communication module is also logical with background system
Letter connection；The valve control module is also electrically connected with the valve；The gas meter, flow meter system also has angle-sensor module,
The angle-sensor module is communicated to connect with the first singlechip.
Further, the angle-sensor module includes triaxial accelerometer, and the first singlechip has analog-to-digital conversion
Device, the output end of the triaxial accelerometer connect the input terminal of the analog-digital converter, and the output end of the analog-digital converter connects
The input terminal of the first singlechip is connect, the triaxial accelerometer is connect with the first voltage management module circuit.
Further, first wireless communication module has GPRS wireless communication devices.
Further, first sound alarm module has the first buzzer.
Further or preferably, the gas meter, flow meter system also have methane warning unit, the methane warning unit with it is described
First controller communicates to connect.
Further, the methane warning unit is located in the accommodating space of described matrix.
Further, the methane warning unit and described matrix split settings, have the second wireless communication module, should
Second wireless communication module and first wireless communication module communicate to connect, and the methane warning unit is second wireless by this
Communication module is communicated to connect with first controller；The methane warning unit also has second singlechip, second voltage pipe
Manage module and the second buzzer；The second singlechip is electrically connected with the second voltage management module, second channel radio
Believe that module and the second buzzer are communicated to connect with the second singlechip respectively.
Further, first wireless communication module and the second wireless communication module have Bluetooth communication device.
Further, the Bluetooth communication device is BLE Bluetooth communication devices.
Preferably, the first voltage management module also has standby power supply device.
A kind of gas meter, flow meter system with dismounting warning function provided by the invention, has angle-sensor module, the angle
Degree sensor assembly is connect with single chip communication.After gas meter, flow meter matrix is mounted on gas pipeline, opening angle sensor assembly,
As long as gas meter, flow meter matrix, in disassembly process, angle of inclination meets or exceeds preset value, gas meter, flow meter system just sends out alarm, and
Reach early warning by warning message remote transmission to gas company's background system by the transporting function of the first wireless communication module
Purpose, protect the legitimate rights and interests of gas company.In addition the gas meter, flow meter system also has methane warning module, can send out indoors
Raw gas leakage alarm, ensures the safe to use of natural gas.
Description of the drawings
Fig. 1 is a kind of front view of gas meter, flow meter system with dismounting warning function provided by the invention.
Fig. 2 is a kind of gas meter, flow meter system communication framework logic diagram with dismounting warning function provided by the invention.
Fig. 3 is that a kind of each module of controller of gas meter, flow meter system with dismounting warning function provided by the invention communicates frame
Structure logic diagram.
Fig. 4, which is a kind of gas meter, flow meter system with dismounting warning function provided by the invention, has methane warning module first
The communication construction logic diagram of kind embodiment.
Fig. 5, which is a kind of gas meter, flow meter system with dismounting warning function provided by the invention, has methane warning module second
The communication construction logic diagram of methane warning module in kind embodiment.
Fig. 6 is a kind of gas meter, flow meter system perspective sensor assembly and first with dismounting warning function provided by the invention
The logic diagram that microcontroller is connected.
Fig. 7 is a kind of gas meter, flow meter system perspective sensor assembly and first with dismounting warning function provided by the invention
The circuit diagram that microcontroller is connected.
In figure：
1, matrix 2, valve 3, first voltage management module 4, sample count module 5, display module 6, angle sensor
Device module 7, the first buzzer 8, arrival end 9, outlet end.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
It please refers to Fig.1 to 6, it is provided by the invention a kind of with the gas meter, flow meter system for dismantling warning function comprising：Matrix
1 and controller, matrix 1 is the shell of gas meter, flow meter system, in there is the accommodating space of setting each unit/module, the control
Device processed is located in the accommodating space of described matrix 1, and described matrix 1 is connected with gas pipeline, is equipped with valve 2 and first voltage
Management module 3 is used for described in phase the first controller and powers, first controller include first singlechip and respectively with this
The valve control module of first singlechip communication connection, sample count module 4, the first memory module, the first sound alarm module
With the first wireless communication module；First wireless communication module is also communicated to connect with background system；The valve control module
Also it is electrically connected with the valve 2；In the present embodiment, the first wireless communication module have with GPRS wireless communication devices, should
Understand, background system refers to the central control system of gas network.In the present embodiment, matrix 1 has and Gas Pipe
The arrival end 8 that road is connected and outlet end 9, valve 2 is for arrival end 8 described in opened/closed, as shown in Figure 1, valve 2 is located at
8 side of arrival end.
Wherein, first singlechip is the core of combustion gas table unit, is sent for data processing and to other module/components
Control instruction；Valve control module is used to control the opening and closing of natural gas pipe valve 2, in the present embodiment, valve control
Molding block is connect with 2 circuit of valve；Sample count module 4 is sampled for the basic of gas meter, flow meter with gas, and shows pipeline to combustion
The gas volume of gas meter unit discharge；First voltage management module 3 has power supply, which is DC power supply such as battery, another
In a little preferred embodiments, first voltage management module 3 also has standby power supply device, after main power source power down, still can protect
It demonstrate,proves and gives gas meter, flow meter system power supply.Gas meter, flow meter system also has display module 5, is communicated to connect with first singlechip, display module 5
With display screen, data information such as combustion gas usage amount or surplus can be directly shown.
Also there is gas meter, flow meter system angle-sensor module 6, the angle-sensor module 6 to be communicated with the first singlechip
Connection.After gas meter, flow meter matrix 1 is mounted on gas pipeline, opening angle sensor assembly 6, as long as gas meter, flow meter matrix 1 is being dismantled
In the process, angle of inclination meets or exceeds preset value, and gas meter, flow meter system just sends out alarm, and passes through the first wireless communication module
Transporting function achieve the purpose that early warning by warning message remote transmission to gas company's background system, protect gas company
Legitimate rights and interests.It should be understood that the preset value at angle of inclination is stored in the first memory module, 6 meeting of angle-sensor module
The variable that angle tilt occurs is sent to first singlechip, first singlechip compares the preset value of the variable and storage
Compared with.In the present embodiment, the first sound alarm module has buzzer, i.e., the combustion of violation operation is alerted in a manner of audible alarm
Gas user.
In embodiment provided by the invention, first singlechip and angular transducer are arranged according to the prior art, and such as the
One microcontroller uses C8051F005, angular transducer to use such as ADXL335 or MMA8452 types triaxial accelerometer or other performance
Similar three-axis gyroscope, for the first singlechip of above-mentioned setting and angular transducer (ADXL335 types three shown in Fig. 6
Axis accelerometer) connection logical relation example, it is for measuring X/Y/Z that first singlechip, which has analog-digital converter, triaxial accelerometer,
The angle of inclination in 3 directions of axis, the output end of the triaxial accelerometer connect the input terminal of the analog-digital converter, the modulus
The output end of converter connects the input terminal of the first singlechip, the triaxial accelerometer and the first voltage management module
3 circuits connect.The precision of angular transducer can be set according to actual needs, for example, the property of may also adapt to signal such as be set put
The components such as greatly/attenuator, detection/filter.To react the circuit diagram of its specific connection relation shown in Fig. 7, as shown,
The connection circuit of angular transducer and microcontroller is made of microcontroller, angular transducer, resistance R, capacitance C1~C5 and power supply,
Wherein C1, C2, C5 accordingly connect the output end of angular transducer, and C3 connects VDDI, Standard resistance range 1K~10K of resistance R with C4
Europe, C1 parameters：The μ of 0.01 μ~0.1 F；C2：The μ of 1 μ~10 F；C3：The μ of 0.01 μ~0.1 F；C4：The μ of 1 μ~10 F；C5：10μF.
In a kind of improved embodiment provided by the invention, gas meter, flow meter system also has methane warning unit, the methane
Alarm unit is communicated to connect with first controller, and as above setting makes gas meter, flow meter system have gas leakage warning function.Room
Interior gas leakage includes the leakage that valve 2 damages and the caused leakage of the aging of interior conduit, connector, further includes being boiled when cooking
Water, slaughterhouse overflow leakage caused by extinguishing hearth.It should be understood that should be with methane transducer in methane warning unit
's.The operating mode of the methane warning module is that methane transducer monitors indoor fuel gas concentration in real time, if combustion gas occurs
Leakage, when indoor fuel gas concentration reaches scheduled alarm concentration value (being such as set as 5000ppm), microcontroller is to audible alarm mould
Block sends out alarm command, and sound alarm module starts to alarm, while microcontroller sends information to valve control module, closes valve
Door 2, and feed back and close valve pass signal to microcontroller, after microcontroller is connected to gas meter, flow meter pass valve pass signal, pass through GPRS channel radios
T unit feeds back information to background system.
In the present embodiment, the setting of methane warning unit has the following two kinds embodiment：
Mode one, as shown in figure 4, methane warning unit is located in the accommodating space of described matrix 1, namely for methane alarm unit
It is integrated in the matrix 1 of gas meter, flow meter system；
Mode two, as shown in figure 5, methane warning unit and 1 split settings of described matrix, have the second radio communication mold
Block, second wireless communication module and first wireless communication module communicate to connect, the methane warning unit by this
Two wireless communication modules are communicated to connect with first controller；The methane warning unit also has second singlechip, second
Voltage management module and the second buzzer；Wherein, second voltage management module is used for each module for power supply of methane warning unit,
In the present embodiment, alternating current (220V) is used to power；The second singlechip is electrically connected with the second voltage management module, institute
The second wireless communication module and the second buzzer is stated to communicate to connect with the second singlechip respectively；As above the methane sensing being arranged
Device can be so that in room any position, which also has second sound alarm module, has the second buzzing
Device；In some environment such as night or there is a certain distance in bedroom with kitchen, when gas leakage occurs in room, is located at
The methane warning unit in bedroom can more effectively make warning in time, avoid the generation of gas leakage accident；Above-described embodiment
In second singlechip according to the prior art, model identical with first singlechip such as can also be used.First buzzer 7 and second
Buzzer could be provided as different audios, make it have significant difference.
In the embodiment of methane warning unit and 1 split settings of described matrix, the first wireless communication module and the second nothing
Line communication module use Blue-tooth communication method, embedded with bluetooth communication device, preferably BLE (low-power consumption) Bluetooth communication device, such as
The communication device with commercially available MSP430 processors may be used.
Specific case used herein elaborates inventive concept, the explanation of above example is only intended to
Help understands core of the invention thought.It should be pointed out that for those skilled in the art, not departing from this
Under the premise of inventive concept, any obvious modification, equivalent replacement or the other improvements made should be included in the present invention
Protection domain within.
Claims (10)
1. a kind of gas meter, flow meter system with dismounting warning function, which is characterized in that the gas meter, flow meter system includes：Matrix and control
Device, the controller are located in the accommodating space of described matrix, and described matrix is connected with gas pipeline, are equipped with valve and the
One voltage management module is used for described in phase the first controller and powers, the controller include first singlechip and respectively with
Valve control module, sample count module, the first memory module, display module, the first sound of first singlechip communication connection
Sound alarm module and the first wireless communication module；First wireless communication module is also communicated to connect with background system；The valve
Door control module is also electrically connected with the valve；The controller also has angle-sensor module, the angle-sensor module
It is connect with the first singlechip circuit.
2. gas meter, flow meter system according to claim 1, which is characterized in that the angle-sensor module accelerates including three axis
There is analog-digital converter, the output end of the triaxial accelerometer to connect the defeated of the analog-digital converter for meter, the first singlechip
Enter end, the output end of the analog-digital converter connects the input terminal of the first singlechip, the triaxial accelerometer and described the
One voltage management modular circuit connects.
3. gas meter, flow meter system according to claim 1, which is characterized in that first wireless communication module have GPRS without
Line communication device.
4. gas meter, flow meter system according to claim 1, which is characterized in that first sound alarm module has the first bee
Ring device.
5. gas meter, flow meter system according to claim 1, which is characterized in that the gas meter, flow meter system also has methane warning list
Member, the methane warning unit are communicated to connect with first controller.
6. gas meter, flow meter system according to claim 5, which is characterized in that the methane warning unit is located at described matrix
In accommodating space.
7. gas meter, flow meter system according to claim 5, which is characterized in that the methane warning unit is seperated with described matrix
There is the second wireless communication module, second wireless communication module to be communicated to connect with first wireless communication module for setting,
The methane warning unit is communicated to connect by second wireless communication module and first controller；The methane warning list
Member also has second singlechip, second voltage management module and the second buzzer；The second singlechip and the second voltage
Management module is electrically connected, and second wireless communication module and the second buzzer are communicated to connect with the second singlechip respectively.
8. gas meter, flow meter system according to claim 7, which is characterized in that first wireless communication module and second is wirelessly
Communication module has Bluetooth communication device.
9. gas meter, flow meter system according to claim 8, which is characterized in that the Bluetooth communication device is BLE Bluetooth communications
Device.
10. gas meter, flow meter system according to any one of claims 1 to 9, which is characterized in that the first voltage management module is also
With standby power supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810658668.3A CN108550250A (en) | 2018-06-25 | 2018-06-25 | A kind of gas meter, flow meter system with dismounting warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810658668.3A CN108550250A (en) | 2018-06-25 | 2018-06-25 | A kind of gas meter, flow meter system with dismounting warning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108550250A true CN108550250A (en) | 2018-09-18 |
Family
ID=63493151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810658668.3A Pending CN108550250A (en) | 2018-06-25 | 2018-06-25 | A kind of gas meter, flow meter system with dismounting warning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108550250A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307877A (en) * | 2019-06-26 | 2019-10-08 | 上海真兰仪表科技股份有限公司 | A kind of safety-type tamper Internet of Things gas meter, flow meter |
| CN114124751A (en) * | 2022-01-26 | 2022-03-01 | 湖南航天捷诚电子装备有限责任公司 | Anti-disassembly detection protection device and method and data exchange equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065438A (en) * | 2012-11-30 | 2013-04-24 | 上海万康无线智能控制系统有限公司 | Gas alarm system with wireless communication function |
| CN203422791U (en) * | 2013-08-07 | 2014-02-05 | 湖南威铭能源科技有限公司 | Anti-demounting intelligent gas meter |
| CN207407946U (en) * | 2017-11-24 | 2018-05-25 | 廊坊新奥燃气设备有限公司 | A kind of gas meter, flow meter alarm association system |
| CN208477718U (en) * | 2018-06-25 | 2019-02-05 | 廊坊新奥燃气设备有限公司 | A kind of gas meter, flow meter system with disassembly warning function |
-
2018
- 2018-06-25 CN CN201810658668.3A patent/CN108550250A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065438A (en) * | 2012-11-30 | 2013-04-24 | 上海万康无线智能控制系统有限公司 | Gas alarm system with wireless communication function |
| CN203422791U (en) * | 2013-08-07 | 2014-02-05 | 湖南威铭能源科技有限公司 | Anti-demounting intelligent gas meter |
| CN207407946U (en) * | 2017-11-24 | 2018-05-25 | 廊坊新奥燃气设备有限公司 | A kind of gas meter, flow meter alarm association system |
| CN208477718U (en) * | 2018-06-25 | 2019-02-05 | 廊坊新奥燃气设备有限公司 | A kind of gas meter, flow meter system with disassembly warning function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307877A (en) * | 2019-06-26 | 2019-10-08 | 上海真兰仪表科技股份有限公司 | A kind of safety-type tamper Internet of Things gas meter, flow meter |
| CN114124751A (en) * | 2022-01-26 | 2022-03-01 | 湖南航天捷诚电子装备有限责任公司 | Anti-disassembly detection protection device and method and data exchange equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10866601B2 (en) | Fluid monitoring and control system | |
| US20230384806A1 (en) | Fluid monitoring and control system | |
| CN202854570U (en) | Intelligent household control system based on Internet of things | |
| CN107808487A (en) | A kind of intelligent household security control system | |
| US9857803B1 (en) | Water conservation system | |
| CN108550250A (en) | A kind of gas meter, flow meter system with dismounting warning function | |
| CN205276378U (en) | Intelligence regulation security protection water supply system that avoids peak hour | |
| CN201681475U (en) | Smart monitor and alarm system based on wireless local area network | |
| CN209196566U (en) | A kind of intelligent pipeline safety monitoring device and system | |
| CN208477718U (en) | A kind of gas meter, flow meter system with disassembly warning function | |
| CN204065065U (en) | A kind of monitoring device for gas-monitoring environment measuring equipment accuracy | |
| CN207407946U (en) | A kind of gas meter, flow meter alarm association system | |
| CN104536401A (en) | Intelligent home control system based on GSM | |
| CN105464171A (en) | Intelligent peak staggering capacity regulating security water supply system | |
| CN205810059U (en) | A kind of based on Internet of Things household monitoring system | |
| CN109801467A (en) | A kind of intelligent sound box with combustion gas and fire detection warning function | |
| CN205334614U (en) | Electric energy information display device | |
| CN205721395U (en) | Intelligent water flow control system | |
| CN206158449U (en) | Intelligence window control system | |
| CN208282882U (en) | A kind of intelligent gas meter system based on gateway and BLE | |
| CN204260051U (en) | A kind of burglar alarm | |
| CN215673706U (en) | Water leakage protector | |
| CN202149272U (en) | Safe, economic and intelligent gas meter controller | |
| CN207881752U (en) | A kind of indoor air quality comprehensive monitor system | |
| CN210240723U (en) | Water supply valve switch structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 065001 hill 0387, 118 Huaxiang Road, Langfang Economic and Technological Development Zone, Hebei Province Applicant after: Langfang Xinao Intelligent Technology Co.,Ltd. Address before: 065001 Langfang City Development Zone of Hebei province Huaxiang No. 106 New Austrian Gas Equipment Co Ltd R & D department Applicant before: LANGFANG ENN GAS EQUITPMENT Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180918 |
|
| RJ01 | Rejection of invention patent application after publication |