CN208908061U - A kind of combustion gas gateway, gas safety detection system and gas-cooker - Google Patents
A kind of combustion gas gateway, gas safety detection system and gas-cooker Download PDFInfo
- Publication number
- CN208908061U CN208908061U CN201821847213.8U CN201821847213U CN208908061U CN 208908061 U CN208908061 U CN 208908061U CN 201821847213 U CN201821847213 U CN 201821847213U CN 208908061 U CN208908061 U CN 208908061U
- Authority
- CN
- China
- Prior art keywords
- module
- combustion gas
- gas
- valve
- radio frequency
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a kind of combustion gas gateway, including shell and circuit board inside the shell is set, circuit board includes micro controller module and the coal gas detection module, mobile communication module, the radio frequency transceiving module that connect respectively with micro controller module；Micro controller module is communicated by radio frequency transceiving module with combustion gas relevant device, is communicated by mobile communication module with data platform；When coal gas detection module detects that the concentration of combustion gas is more than that threshold value or wireless communication module receive when closing valve signal, micro controller module control radio frequency transceiving module externally sends the radio frequency signal including closing valve order.The utility model beneficial effect is that the leakage situation of combustion gas can be monitored; cooperation gas cut off valve, which is worked as, to be occurred to cut off fuel gas source under gas leakage and other dangerous situations; protect the security of the lives and property of user; the device status information that can also receive and upload simultaneously combustion gas relevant device, allows user to issue pass valve signal by combustion gas gateway.
Description
Technical field
The utility model relates to domestic gas fields, and in particular to a kind of combustion gas gateway, gas safety detection system and combustion
Gas kitchen.
Background technique
Information Technology Development deepens constantly since last decade, and people increasingly get used under allegro pressure living,
It has passed through one day busy, during body tired out is gone back home in tow, people often are negligent of preventing to emergency events such as gas leakages
Model.Therefore explosion, fire case take place frequently in recent years, most to be formed with very big association with the effective early warning plane of shortage, at present tradition
Gas monitoring depend on the vigilance of people, be unable to monitor automatically, when it is impossible to meet people for gas leakage
The requirement of quick response and control.
In application number: 2017109883475, patent name: disclosing one kind in a kind of valve runner and gas tank can examine
The valve runner of own switch state is surveyed, and uploads switching-state information, which can use on gas tank as gas tank
Valve, the valve on natural gas line as gas pipeline in kitchen can also be used.In application number: 2018111876402,
Patent name: a kind of fuel gas shutoff that can remotely receive extraneous fuel gas shutoff signal is disclosed in a kind of automatic fuel gas cutting off device
Valve automatically cuts off combustion gas according to signal.Both equipment are each provided with special function in, but do not have also at present equipment with
The two combines, and synthesis forms a kind of gas safety detection system that function is more perfect, and can greatly reduce household combustion gas makes
Security risk.
Summary of the invention
For the shortcoming for avoiding background technique, the utility model provides a kind of combustion gas gateway, can cooperate gas cut off valve,
When there is gas leakage, pass valve signal can be remotely sent to gas cut off valve and cuts off fuel gas source.A kind of combustion gas is also provided simultaneously
Safety detecting system, when forgetting to close fuel gas source valve, user, which can remotely send to close valve signal and cut off to gas cut off valve, fires
Gas source.
The utility model proposes a kind of combustion gas gateway, including shell and set circuit board inside the shell, circuit board packet
Include micro controller module and connect respectively with micro controller module coal gas detection module, mobile communication module, less radio-frequency
Transceiver module；Micro controller module is communicated by radio frequency transceiving module with combustion gas relevant device, and mobile communication is passed through
Module is communicated with data platform；When coal gas detection module detects that the concentration of combustion gas is more than that threshold value or wireless communication module are received
To when closing valve signal, micro controller module control radio frequency transceiving module externally sends wirelessly penetrating including closing valve order
Frequency signal.
Further, circuit board further includes being connect with micro controller module for detecting the temperature detection mould of hearth temperature
Block and human-body infrared sensing module；In the case that human body infrared is not detected in human-body infrared sensing module, temperature detection mould
When block detects that the temperature rise in preset time is more than temperature rise threshold value or detects that Current Temperatures are more than temperature threshold, microcontroller mould
Block control radio frequency transceiving module externally sends the radio frequency signal including closing valve order.
Further, circuit board further includes the display panel module connecting with micro controller module, and display panel module is for showing
Show hearth temperature and engagement time.
Further, circuit board further includes the buzzer module connecting with micro controller module, and buzzer module is for working as
Starting, which is uttered long and high-pitched sounds, when there are abnormal conditions carries out audible alarm.
Further, circuit board further includes the LED lamp module connecting with micro controller module, and LED lamp module is used for when out
Starting flashing carries out light warning when existing abnormal conditions.
In the utility model, mobile communication module is NB-IoT module, GPRS module, any one in 2G, 3G, 4G, 5G
Kind, preferably NB-IoT module.
A kind of gas safety detection system that the utility model also proposes, including that can be put down with the data of communication of mobile terminal
Platform, gas cut off valve and the combustion gas gateway with mobile communication module, radio frequency transceiving module and coal gas detection module；Combustion
Gas gateway is communicated by mobile communication module with data platform, is carried out by radio frequency transceiving module and gas cut off valve
Communication；Data platform receives the device status information that combustion gas gateway itself and gas cut off valve are sent by combustion gas gateway；Data
Platform can send according to the pass valve order of mobile terminal and close valve signal to combustion gas gateway；When combustion gas gateway detects the concentration of combustion gas
When more than threshold value or when receiving the pass valve signal of data platform transmission, combustion gas gateway transmission pass valve signal to gas cut off valve,
Gas cut off valve closes valve and cuts off combustion gas.
It further, further include valve runner；Combustion gas gateway is communicated by radio frequency transceiving module with valve runner, number
The device status information that valve runner is sent is received by combustion gas gateway according to platform；Valve body where gas cut off valve is located at valve runner
Downstream.
A kind of gas-cooker that the utility model also proposes, including gas-cooker ontology and circuit board, circuit board include microcontroller
Device module and coal gas detection module, mobile communication module, the radio frequency transceiving module being connect respectively with micro controller module；
Micro controller module is communicated by radio frequency transceiving module with combustion gas relevant device, and mobile communication module and data are passed through
Platform is communicated；When coal gas detection module detects that the concentration of combustion gas is more than that threshold value or wireless communication module receive pass valve signal
When, micro controller module control radio frequency transceiving module externally sends the radio frequency signal including closing valve order.
Further, circuit board further includes being connect with micro controller module for detecting the temperature detection mould of hearth temperature
Block and human-body infrared sensing module；In the case that human body infrared is not detected in human-body infrared sensing module, temperature detecting module
When detecting that the temperature rise in preset time is more than temperature rise threshold value or detects that Current Temperatures are more than temperature threshold, micro controller module
Control radio frequency transceiving module externally sends the radio frequency signal including closing valve order.
The utility model combustion gas gateway beneficial effect is can be used as in family number between combustion gas relevant device and data platform
According to interactive bridge, the device status information that combustion gas relevant device is sent can receive, and device status information is uploaded to data
Platform allows user to connect the current device state that data platform understands combustion gas relevant device in family by mobile terminal；Combustion
Gas gateway can also be according to the pass valve order that user issues, and sending pass valve signal to gas cut off valve makes its cut off fuel gas source.Simultaneously
Combustion gas gateway can also monitor the leakage situation of combustion gas, and cooperation gas cut off valve can occur gas leakage, dryout the danger such as pot
In the case of cut off fuel gas source, protect the security of the lives and property of user.The gas safety detection system and gas-cooker of the utility model
Beneficial effect can refer to combustion gas gateway.
Detailed description of the invention
Fig. 1 is the module composition schematic diagram of 1 combustion gas gateway of embodiment.
Fig. 2 is the system composition schematic diagram of 2 gas safety detection system of embodiment.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Embodiment 1, referring to attached drawing 1, a kind of combustion gas gateway including shell and sets circuit board inside the shell, circuit board
The coal gas detection module 12 that is connect including micro controller module 11 and respectively with micro controller module 11, mobile communication module
14, radio frequency transceiving module 13；Micro controller module 11 is carried out by radio frequency transceiving module 13 and combustion gas relevant device
Communication, is communicated by mobile communication module 14 with data platform；When coal gas detection module 12 detects that the concentration of combustion gas is super
It crosses threshold value or wireless communication module receives when closing valve signal, micro controller module 11 controls radio frequency transceiving module 13 to outgoing
Send the radio frequency signal including closing valve order.Mobile communication module 14 can for GPRS module, NB-IoT module, 2G,
Any one in 3G, 4G, 5G, preferred NB-IoT module in the present embodiment.
There are two types of the present embodiment combustion gas gateway major functions, first is that as data between combustion gas relevant device and data platform
Interactive bridge, combustion gas relevant device can be the gas cut off valve mentioned in background technique, valve runner, receive and upload combustion gas
The device status information of relevant device；Second is that the security situation that monitoring combustion gas uses, such as the detection of gas leakage.For first
Point, combustion gas gateway can by radio frequency transceiving module 13 receive combustion gas relevant device respectively externally send heartbeat data, set
Standby status data etc., combustion gas gateway pass through NB-IoT module again and upload the data of combustion gas relevant device and combustion gas gateway itself
To data platform, while the order that can also issue data platform is transmitted to combustion gas relevant device.For second point, combustion gas gateway
Included coal gas detection module 12 itself sends when the concentration for detecting combustion gas is more than threshold value and closes valve order to gas cut off valve
It is set to cut off gas source.
Other than above two function, the present embodiment combustion gas gateway also has the function of that pot is dryouied in monitoring, specifically, circuit
Plate further includes the temperature detecting module 15 and human-body infrared sensing module 16 connecting with micro controller module 11；Temperature detecting module
15 mainly for detection of current hearth temperature；In the case that human body infrared is not detected in human-body infrared sensing module 16, temperature
It is micro- when detection module 15 detects that the temperature rise in preset time is more than temperature rise threshold value or detects that Current Temperatures are more than temperature threshold
Controller module 11 controls externally radio frequency signal of the transmission including closing valve order of radio frequency transceiving module 13.It dryouies
Feature that there are two the characteristics of pot, first, often user in kitchen and does not forget have food cooking；Second, before dryouting pot, because
For moisture in pot presence and do not stop to evaporate, the temperature near gas-cooker can not stop to fluctuate in a higher range, and work as
Moisture evaporates, and since the moisture not evaporated takes away heat, the temperature near gas-cooker can be increased quickly.For second
Point also will appear quickly increasing again for temperature if middle small fire is turned high fire or lights another stone or metal plate for standing a stove on as a precaution against fire by user, it can be seen that
Normal hearth heating and the main distinction dryouied between pot are just whether presence of people.If combustion gas gateway exists in the present embodiment
In the case where human body infrared is not detected, when detecting that the temperature rise in preset time is more than temperature rise threshold value, then current gas is judged
There is a situation where dryouting pot, combustion gas gateway is sent to close valve order and so that its is cut off gas source to gas cut off valve stove.
The present embodiment combustion gas gateway also has some secondary functions, specifically, circuit board further includes and micro controller module
Buzzer module 18, the LED lamp module 17, display panel module 19 of 11 connections, buzzer module 18, which is used to work as, there are abnormal conditions
Starting, which is uttered long and high-pitched sounds, when needing to close valve carries out audible alarm prompting user, and LED lamp module 17 is used to abnormal conditions occur to need to close valve
Shi Qidong flashing carries out light warning and reminds user, and display panel module 19 is for showing hearth temperature and engagement time.
In the complete situation of functional module, combustion gas gateway can monitor all data and carry out scene analysis, and sentence
Upload data platform after making result: one, in the case where combustion gas gas cut off valve in the open state, when detected human body infrared,
Constant temperature rises and when without gas leakage, determines currently to be user security gas field scape；Two, it is in combustion gas gas cut off valve
Under opening state, when having detected that human body infrared, temperature do not rise and have gas leakage, determine currently unsafe for user
With gas field scape；Three, when the concentration for detecting combustion gas is more than threshold value, determine currently to be gas leakage scene；Four, when being not detected
When temperature rise in human body infrared, preset time is more than temperature rise threshold value, determine currently to be to dryout a pot scene；Five, default when detecting
When constant temperature declines, there is gas leakage and persistently increases concentration more than threshold value in time, determine currently to be put out by water field for flame
Scape；Six, when detection constant temperature drops to room temperature, judgement is currently to finish scene with gas.
The present embodiment combustion gas gateway as in family between combustion gas relevant device and data platform data interaction bridge, can connect
The device status information that combustion gas relevant device is sent is received, and device status information is uploaded to data platform, leads to user
Cross the current device state that mobile terminal connection data platform understands combustion gas relevant device in family；Combustion gas gateway can also be according to user
The pass valve order issued, sending pass valve signal to gas cut off valve makes its cut off fuel gas source.Combustion gas gateway can also monitor simultaneously
The leakage situation of combustion gas, cooperation gas cut off valve can cut off fuel gas source in the case where gas leakage occurs, dryouies the dangerous situations such as pot, protect
Protect the security of the lives and property of user.
Embodiment 2, referring to attached drawing 2, a kind of gas safety detection system, including can be with the data platform of communication of mobile terminal
200, gas cut off valve 300, valve runner 400 and have mobile communication module, radio frequency transceiving module and coal gas detection mould
The combustion gas gateway 100 of block；Gas cut off valve 300 is located at the downstream of 400 place valve body of valve runner；Combustion gas gateway 100 passes through movement
Communication module is communicated with data platform 200, passes through radio frequency transceiving module and gas cut off valve 300 and valve runner 400
It is communicated；Data platform 200 by combustion gas gateway 100 receive combustion gas gateway 100 itself, valve runner 400 and combustion gas cut
The device status information that disconnected valve 300 is sent；Data platform 200 can send according to the pass valve order of mobile terminal and close valve signal to combustion
Gas gateway 100；When combustion gas gateway 100 detect combustion gas concentration be more than threshold value when or receive data platform 200 transmission pass
When valve signal, combustion gas gateway 100, which is sent, closes valve signal to gas cut off valve 300, and gas cut off valve 300 closes valve and cuts off combustion gas.
Generally for gas leakage in unmanned situation is avoided, the user being accustomed to is often just by total valve before using combustion gas
It opens, closes total valve after use, it is ensured that safety.But it is accustomed to again good user, in long-term life, can also exist
The case where closing total valve generation is forgotten after gas-cooker is used for multiple times.In the present embodiment system, valve runner 400 is mountable to be used as day
Right feed channel or gas tank total valve, gas cut off valve 300 are located at the downstream of 400 place valve body of valve runner or are directly installed on
Gas outlet position.Valve runner 400 and gas cut off valve 300 can be uploaded including valve switch by combustion gas gateway 100
To data platform 200, user can be connected combustion gas correlation in the understanding of data platform 200 man by mobile terminal and set device status information
Standby equipment state, for example whether valve runner 400 closes, whether gas cut off valve 300 closes.If user uses in combustion gas
After forget to close valve runner 400, can be remotely flat by data and in the case where can not go home within the outgoing short time
Platform 200, which issues, closes valve order, closes gas cut off valve 300, it is ensured that the gas safe in family prevents gas leakage.
Embodiment 3, a kind of gas-cooker, including gas-cooker ontology and circuit board, circuit board include micro controller module and
Coal gas detection module, mobile communication module, the radio frequency transceiving module being connect respectively with micro controller module；Microcontroller mould
Block is communicated by radio frequency transceiving module with combustion gas relevant device, is led to by mobile communication module and data platform
Letter；When coal gas detection module detect combustion gas concentration be more than threshold value or wireless communication module receive close valve signal when, microcontroller
Device module control radio frequency transceiving module externally sends the radio frequency signal including closing valve order.
Circuit board further includes being connect with micro controller module for detecting the temperature detecting module and human body of hearth temperature
Infrared sensor module；In the case that human body infrared is not detected in human-body infrared sensing module, temperature detecting module detects pre-
If the temperature rise in the time is more than temperature rise threshold value or detects that Current Temperatures are more than temperature threshold, micro controller module control is wireless
RF receiving and transmission module externally sends the radio frequency signal including closing valve order.
The function of the combustion gas gateway of embodiment 1 has exactly been integrated into gas-cooker in fact by the present embodiment product, therefore in detail
It introduces and can refer to embodiment 1 with working principle.
Although the utility model is described by reference to preferred embodiment, ordinary skill people
Member is it is to be appreciated that the description that can be not limited to the above embodiments can be made in form and details within the scope of the claims
Various change.
Claims (10)
1. a kind of combustion gas gateway, it is characterised in that: including shell and set circuit board inside the shell, circuit board includes microcontroller
Device module and coal gas detection module, mobile communication module, the radio frequency transceiving module being connect respectively with micro controller module；
Micro controller module is communicated by radio frequency transceiving module with combustion gas relevant device, and mobile communication module and data are passed through
Platform is communicated；When coal gas detection module detects that the concentration of combustion gas is more than that threshold value or wireless communication module receive pass valve signal
When, micro controller module control radio frequency transceiving module externally sends the radio frequency signal including closing valve order.
2. a kind of combustion gas gateway according to claim 1, it is characterised in that: circuit board further includes connecting with micro controller module
What is connect is used to detect the temperature detecting module and human-body infrared sensing module of hearth temperature；When human-body infrared sensing module is not examined
In the case where measuring human body infrared, temperature detecting module detects that the temperature rise in preset time is more than that temperature rise threshold value or detect is worked as
When preceding temperature is more than temperature threshold, micro controller module control radio frequency transceiving module is externally sent including closing valve order
Radio frequency signal.
3. a kind of combustion gas gateway according to claim 2, it is characterised in that: circuit board further includes connecting with micro controller module
The display panel module connect, display panel module is for showing hearth temperature and engagement time.
4. a kind of combustion gas gateway according to claim 1, it is characterised in that: circuit board further includes connecting with micro controller module
The buzzer module connect, buzzer module, which is used to start to utter long and high-pitched sounds when there are abnormal conditions, carries out audible alarm.
5. a kind of combustion gas gateway according to claim 1, it is characterised in that: circuit board further includes connecting with micro controller module
The LED lamp module connect, LED lamp module are used for the starting flashing when there are abnormal conditions and carry out light warning.
6. a kind of combustion gas gateway according to claim 1, it is characterised in that: mobile communication module be NB-IoT module,
Any one in GPRS module, 2G, 3G, 4G, 5G.
7. a kind of gas safety detection system, it is characterised in that: including can data platform, fuel gas shutoff with communication of mobile terminal
Valve and combustion gas gateway with mobile communication module, radio frequency transceiving module and coal gas detection module；The combustion gas gateway
Communicated by mobile communication module with the data platform, by radio frequency transceiving module and the gas cut off valve into
Row communication；The data platform receives the equipment state letter that combustion gas gateway itself and gas cut off valve are sent by combustion gas gateway
Breath；The data platform can send according to the pass valve order of mobile terminal and close valve signal to combustion gas gateway；When combustion gas gateway detects
When concentration to combustion gas is more than threshold value or when receiving the pass valve signal of data platform transmission, combustion gas gateway, which is sent, closes valve signal extremely
Gas cut off valve, gas cut off valve close valve and cut off combustion gas.
8. a kind of gas safety detection system according to claim 7, it is characterised in that: further include valve runner；The combustion
Gas gateway is communicated by radio frequency transceiving module with the valve runner, and the data platform receives valve by combustion gas gateway
The device status information that runner is sent；The downstream of valve body where the gas cut off valve is located at valve runner.
9. a kind of gas-cooker, including gas-cooker ontology and circuit board, it is characterised in that: the circuit board includes micro controller module
And coal gas detection module, mobile communication module, the radio frequency transceiving module being connect respectively with micro controller module；Microcontroller
Device module is communicated by radio frequency transceiving module with combustion gas relevant device, by mobile communication module and data platform into
Row communication；When coal gas detection module detect combustion gas concentration be more than threshold value or wireless communication module receive close valve signal when, it is micro-
Controller module control radio frequency transceiving module externally sends the radio frequency signal including closing valve order.
10. a kind of gas-cooker according to claim 9, it is characterised in that: the circuit board further includes and microcontroller mould
The temperature detecting module and human-body infrared sensing module for being used to detect hearth temperature of block connection；When human-body infrared sensing module not
In the case where detecting human body infrared, temperature detecting module detects that the temperature rise in preset time is more than temperature rise threshold value or detects
When Current Temperatures are more than temperature threshold, it includes closing valve order to exist that micro controller module control radio frequency transceiving module, which is externally sent,
Interior radio frequency signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821847213.8U CN208908061U (en) | 2018-11-10 | 2018-11-10 | A kind of combustion gas gateway, gas safety detection system and gas-cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821847213.8U CN208908061U (en) | 2018-11-10 | 2018-11-10 | A kind of combustion gas gateway, gas safety detection system and gas-cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208908061U true CN208908061U (en) | 2019-05-28 |
Family
ID=66614802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821847213.8U Expired - Fee Related CN208908061U (en) | 2018-11-10 | 2018-11-10 | A kind of combustion gas gateway, gas safety detection system and gas-cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208908061U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375747A (en) * | 2020-02-25 | 2021-09-10 | 萨基姆通讯能源及电信联合股份公司 | Combustible fluid meter arranged to detect temperature anomalies |
| CN115311823A (en) * | 2022-08-11 | 2022-11-08 | 重庆宇泽森智能装备有限公司 | Gas pipeline monitoring and early warning system and method and storage medium |
-
2018
- 2018-11-10 CN CN201821847213.8U patent/CN208908061U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375747A (en) * | 2020-02-25 | 2021-09-10 | 萨基姆通讯能源及电信联合股份公司 | Combustible fluid meter arranged to detect temperature anomalies |
| CN113375747B (en) * | 2020-02-25 | 2024-03-08 | 萨基姆通讯能源及电信联合股份公司 | Combustible fluid meter arranged to detect temperature anomalies |
| CN115311823A (en) * | 2022-08-11 | 2022-11-08 | 重庆宇泽森智能装备有限公司 | Gas pipeline monitoring and early warning system and method and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109191795A (en) | A kind of combustion gas gateway, gas safety detection system and gas-cooker | |
| US10991222B2 (en) | Active kitchen safety monitoring system and control method thereof | |
| EP3147880B1 (en) | Supervision and control method for preventing poor air quality and fire as well as issuing an alarm of a dangerous condition | |
| CN204215518U (en) | A kind of family kitchen gas leakage and fire alarm system | |
| CN105701985A (en) | Combustion gas leakage alarm control system | |
| CN208908061U (en) | A kind of combustion gas gateway, gas safety detection system and gas-cooker | |
| CN205375772U (en) | Early warning and control system of gas -cooker | |
| CN211294116U (en) | Intelligent lock and fire alarm linkage system applied to intelligent lock | |
| CN203982547U (en) | Rock gas warning system | |
| CN106678891A (en) | Cooker and fire-preventing control method thereof | |
| CN206152151U (en) | Fire safety management system based on thing networking | |
| CN112634589B (en) | Household gas intelligent integrated system of anti-leakage and anti-explosion timing switch | |
| CN201353392Y (en) | Gas extinguishing controller | |
| CN108922126A (en) | A kind of natural gas leakage alarm system and alarm method | |
| CN112113248A (en) | Kitchen fire-driving person-separating device | |
| CN110332570B (en) | Gas leakage detection protection system and integrated kitchen | |
| CN214067933U (en) | Intelligent gas alarm system | |
| CN207459329U (en) | A kind of intelligent distant control power outlet with unmanned automatic closing function | |
| CN202834353U (en) | Gas valve with reminders | |
| CN214796149U (en) | Intelligent micro-electric gas leakage-proof explosion-proof protection system | |
| CN211124329U (en) | Automatic alarm controller for kitchen fire leaving from people | |
| CN207609862U (en) | A kind of gas intelligent valve system with prompting function | |
| CN213399935U (en) | Household gas alarm system | |
| CN206556080U (en) | Intelligent Household Electronic Appliances | |
| CN111853865A (en) | Intelligent stove detection method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325011 Second and Third Floors, 88 Yonganjiang Road, Wenzhou Economic and Technological Development Zone, Zhejiang Province Patentee after: Wenzhou Lian'an Electronic Equipment Co.,Ltd. Address before: 325011 Second and Third Floors, 88 Yonganjiang Road, Wenzhou Economic and Technological Development Zone, Zhejiang Province Patentee before: WENZHOU LIAN'AN INTERNET OF THINGS TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190528 Termination date: 20211110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |