CN110736030A - household gas intelligent monitoring system - Google Patents
household gas intelligent monitoring system Download PDFInfo
- Publication number
- CN110736030A CN110736030A CN201911012767.5A CN201911012767A CN110736030A CN 110736030 A CN110736030 A CN 110736030A CN 201911012767 A CN201911012767 A CN 201911012767A CN 110736030 A CN110736030 A CN 110736030A
- Authority
- CN
- China
- Prior art keywords
- gas
- processor
- concentration
- data
- electromagnetic
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Computer Networks & Wireless Communication (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses an household gas intelligent monitoring system which comprises a control device, a gas sensor, a electromagnetic gas valve and a second electromagnetic gas valve, wherein the electromagnetic gas valve is connected with a pipeline between a gas main pipe and a gas meter gas inlet, the second electromagnetic gas valve is connected with a pipeline between a gas meter gas outlet and a gas using device, the control device comprises a processor, an acquisition module, an electromagnetic gas valve driving module and a wireless module, the wireless module is connected with the processor, the gas sensor is connected with the processor through the acquisition module, the processor is respectively connected with each electromagnetic gas valve through the electromagnetic gas valve driving module, the gas sensor monitors the indoor gas concentration and converts the gas concentration into corresponding concentration data to be sent to the processor, and the processor generates alarm data according to the gas concentration monitored by the gas sensor.
Description
Technical Field
The invention relates to the field of intelligent home systems, in particular to an household gas intelligent monitoring system.
Background
The conventional household gas monitoring system generally comprises a gas sensor and a controller, wherein the gas sensor monitors the gas concentration in a room where a gas system such as a kitchen is located and sends data to the controller, the monitored gas concentration in the controller is compared with a preset threshold value, and if the monitored gas concentration is larger than the preset threshold value, an alarm is given.
The invention aims to provide household gas intelligent monitoring systems to solve the problems of the household gas monitoring systems in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
household gas intelligent monitoring system, which is characterized in that the system comprises a control device, a gas sensor, a electromagnetic gas valve and a second electromagnetic gas valve, wherein the gas sensor and the control device are arranged in a room where the gas system is located, the electromagnetic gas valve is communicated with a pipeline connected between a gas main pipe and a gas inlet of a gas meter, the second electromagnetic gas valve is communicated with a pipeline connected between a gas outlet of the gas meter and a gas using device, the control device comprises a processor, an acquisition module, an electromagnetic gas valve driving module and a wireless module, the wireless module is connected with a communication end of the processor, the gas sensor is connected with a data input end of the processor through the acquisition module, and a signal output end of the processor is respectively connected with each electromagnetic gas valve through the electromagnetic gas valve;
the gas sensor monitors indoor gas concentration, converts the gas concentration into corresponding concentration data C1 and then sends the corresponding concentration data C1 to the processor, the gas concentration threshold value is preset in the processor, the processor compares the gas concentration data C1 sent by the gas sensor with the gas concentration threshold value, if the gas concentration data C1 sent by the gas sensor is greater than the gas concentration threshold value, the processor controls the electromagnetic gas valve to be closed through the electromagnetic gas valve driving module, and a pipeline between a gas main pipe and a gas meter is disconnected;
after the electromagnetic air valve is closed, the gas sensor monitors indoor gas concentration in time T1 to obtain data CT1 and sends the data CT1 to the processor, the processor obtains a concentration data time-varying curve according to concentration data CT1 in time T1 monitored by the gas sensor, when the concentration data CT1 continuously increases in time T1, the processor generates alarm data and sends alarm data to the outside through the wireless module;
when the concentration data is increased to C' within the time T1, the processor controls the second electromagnetic valve to be closed through the electromagnetic air valve driving module and controls the electromagnetic valve to be opened, the gas sensor continuously monitors the indoor gas concentration within time T2 to obtain data CT2 and sends the data CT2 to the processor, the processor obtains a concentration data change curve along with time according to the concentration data CT2 within time T2 monitored by the gas sensor, when the concentration data CT2 continuously increases within the time T2, the processor generates second alarm data and transmits the second alarm data outwards through the wireless module, when the concentration data CT2 continuously increases within the time T2, the processor generates third alarm data and transmits the third alarm data outwards through the wireless module.
The household gas intelligent monitoring system is characterized by further comprising an alternating current controllable switch, the alternating current controllable switch is connected to a power supply bus connected to a room where a gas system is located, the processor is connected with a control end of the alternating current controllable switch, and the processor outputs a voltage signal to the alternating current controllable switch to enable the alternating current controllable switch to be conducted.
The household gas intelligent monitoring system is characterized in that a second gas concentration threshold value is arranged in the processor, the second gas concentration threshold value is larger than a gas concentration threshold value, when concentration data CT1 continuously increase within time T1, the processor generates th alarm data, meanwhile, the processor compares the maximum value of the concentration data CT1 within time T1 with the second gas concentration threshold value, and if the maximum value of the concentration data CT1 within time T1 is larger than the second gas concentration threshold value, the processor stops outputting a voltage signal to the alternating current controllable switch, so that the alternating current controllable switch is switched off.
The household gas intelligent monitoring systems are characterized in that when concentration data are increased to C ' within time T1 and then keep unchanged, the processor compares the concentration data C ' with a second gas concentration threshold value, and if the concentration data C ' are larger than the second gas concentration threshold value, the processor stops outputting a voltage signal to the alternating current controllable switch to disconnect the alternating current controllable switch.
Compared with the prior art, the invention can help judge the approximate position of gas leakage and obtain different alarm data by combining the action of different electromagnetic valves and the change of the data of the gas sensor according to the data measured by the gas sensor, and can respond in time when the gas leakage concentration reaches the explosion critical value, thereby improving the intelligent degree of the monitoring system.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention.
Detailed Description
The invention is further illustrated in the following description with reference to the figures and examples.
As shown in fig. 1, kinds of domestic gas intelligent monitoring system, including controlgear, gas sensor 1, and electromagnetism pneumatic valve 2, second electromagnetism pneumatic valve 3, wherein gas sensor 1, controlgear sets up in the kitchen at gas system place, electromagnetism pneumatic valve 2 intercommunication inserts pipeline between gas house steward 4 and the 5 air intakes of gas table, pipeline between 5 gas outlets of second electromagnetism pneumatic valve 3 intercommunication access gas table and the gas appliances, controlgear includes treater 6, collection module 7, electromagnetism pneumatic valve drive module 8, wireless module 9 connects the communication end of treater 6, gas sensor 1 is connected with the data input part of treater 6 through collection module 7, the signal output part of treater 6 passes through electromagnetism pneumatic valve drive module 8 and respectively with each electromagnetism pneumatic valve 2, 3 are connected.
Gas sensor 1 monitors indoor gas concentration, and send into treater 6 after converting gas concentration into corresponding concentration data C1, treater 6 has preset the gas concentration threshold value, treater 6 compares the gas concentration data C1 that gas sensor sent into with the gas concentration threshold value, if gas concentration data C1 that gas sensor 1 sent into is greater than the gas concentration threshold value, it leaks the risk to indicate to have the gas, treater 6 controls electromagnetism pneumatic valve 2 through electromagnetism pneumatic valve drive module 8 and closes this moment, disconnect the pipeline between gas house steward 4 and the gas table 5.
When the electromagnetic gas valve 2 is closed, the gas sensor 1 monitors indoor gas concentration within time T1 to obtain data CT1 and sends the data CT1 to the processor 6, the processor 6 obtains a concentration data time-varying curve according to the concentration data CT1 within time T1 monitored by the gas sensor 1, when the concentration data CT1 continuously increases within the time T1, the fact that the electromagnetic gas valve 2 is disconnected but gas leakage still exists is indicated, therefore, the gas leakage position can be judged to be between the electromagnetic gas valve 2 and the gas main pipe 4, the processor 6 generates alarm data and transmits alarm data outwards through a wireless module, and when an external management server or a user handheld intelligent device receives the alarm data, gas leakage can be known to exist in a pipeline system between the gas main pipe 4 and the electromagnetic gas valve 2.
When the concentration data is increased to C' within the time T1, it indicates that the gas leakage gradually disappears along with the closing of the th electromagnetic valve 2, so that it can be determined that the gas leakage position is not between the th electromagnetic valve 2 and the gas main 4, and at this time, the processor 6 controls the second electromagnetic valve 3 to close through the electromagnetic valve driving module 8, and controls the th electromagnetic valve 2 to open.
The gas sensor 1 continuously monitors indoor gas concentration for time T2 to obtain data CT2 and sends the data CT2 to the processor 6, the processor 6 obtains a concentration data time-varying curve according to concentration data CT2 in time T2 monitored by the gas sensor, when the concentration data CT2 continuously increases in time T2 to indicate that a gas leakage phenomenon exists, a pipeline system of which the gas leakage position is between the second electromagnetic valve 3 and the -th electromagnetic valve 2 can be judged, at the moment, the processor 6 generates second alarm data and transmits the second alarm data outwards through the wireless module 9, and when an external gas management server or a user handheld intelligent device receives the second alarm data, the fact that the pipeline system between the second electromagnetic valve 3 and the -th electromagnetic valve 2 has gas leakage can be known.
When the concentration data CT2 is increased within the time T2 and remains unchanged, indicating that there is no gas leakage, the processor 6 may determine that the gas leakage position is in the pipe system between the second solenoid valve 3 and the gas-using equipment, and at this time, generate third alarm data and transmit the third alarm data to the outside through the wireless module. When the external gas management server or the user holds the intelligent device to receive the third alarm data, it can be known that gas leakage exists in the pipeline system between the second electromagnetic valve 3 and the gas-using device.
The invention also comprises an alternating current controllable switch 10, wherein the alternating current controllable switch 10 is composed of a rectifier bridge and a controlled silicon, the rectifier bridge is connected with a power bus in a room where the gas system is located, the controlled silicon is connected with the rectifier bridge, a voltage signal is output to the controlled silicon by the processor 6, the controlled silicon is conducted, and at the moment, the kitchen is normally powered on.
And a second gas concentration threshold value is arranged in the processor 6, the second gas concentration threshold value is greater than th gas concentration threshold value, and the second gas concentration threshold value is less than a gas explosion threshold value, when the concentration data CT1 is continuously increased within the time T1, the processor 6 generates th alarm data, meanwhile, the processor 6 compares the maximum value of the concentration data CT1 within the time T1 with the second gas concentration threshold value, if the maximum value of the concentration data CT1 within the time T1 is greater than the second gas concentration threshold value, the gas leakage concentration in the kitchen is about to reach the explosion threshold value at the moment, the processor stops outputting a voltage signal to the alternating current controllable switch, so that the alternating current controllable switch is switched off, the interior of the kitchen is powered off, and explosion is prevented.
When the concentration data is increased to C ' within the time T1 and remains unchanged, the processor 6 compares the concentration data C ' with the second gas concentration threshold value, and if the concentration data C ' is greater than the second gas concentration threshold value, indicating that the kitchen gas leakage concentration is about to reach the explosion threshold value, the processor 6 stops outputting the voltage signal to the ac controllable switch, so that the ac controllable switch is turned off.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (4)
- The intelligent monitoring system for the household gas is characterized by comprising control equipment, a gas sensor, a th electromagnetic gas valve and a second electromagnetic gas valve, wherein the gas sensor and the control equipment are arranged in a room where the gas system is located, the th electromagnetic gas valve is communicated and connected with a pipeline between a gas main pipe and a gas meter gas inlet, the second electromagnetic gas valve is communicated and connected with a pipeline between a gas outlet of the gas meter and gas equipment, the control equipment comprises a processor, an acquisition module, an electromagnetic gas valve driving module and a wireless module, the wireless module is connected with a communication end of the processor, the gas sensor is connected with a data input end of the processor through the acquisition module, and a signal output end of the processor is respectively connected with each electromagnetic gas valve through the electromagnetic gas valve driving module;the gas sensor monitors the indoor gas concentration and converts the gas concentration into corresponding concentration data C1Then the gas is sent into a processor, the processor is preset with th gas concentration threshold value, and the processor sends the gas concentration data C sent by the gas sensor1Comparing with th gas concentration threshold, and if the gas concentration data C sent by the gas sensor1If the concentration of the fuel gas is higher than the th fuel gas concentration threshold value, the processor controls the th electromagnetic gas valve to be closed through the electromagnetic gas valve driving module, and a pipeline between a fuel gas main pipe and a fuel gas meter is disconnected;after the th electromagnetic gas valve is closed, the gas sensor monitors the indoor gas concentration within time T1 to obtain data CT1And sending the concentration data C to a processor, wherein the processor monitors the concentration data C in time T1 according to the gas sensorT1Obtaining a time-dependent curve of concentration data, when the concentration data CT1If the time is increased continuously in T1, the processor generates th alarm data and transmits th alarm data to the outside through the wireless module;when the concentration data is increased to C' within time T1, the processor controls the second electromagnetic valve to close and controls the electromagnetic valve to open through the electromagnetic valve driving module, and the gas sensor continues to monitor the indoor gas concentration within time T2 to obtain data CT2And sending the concentration data C to a processor, wherein the processor monitors the concentration data C in time T2 according to the gas sensorT2Obtaining a time-dependent curve of concentration data, when the concentration data CT2When the time is increased continuously within the time T2, the processor generates second alarm data and transmits the second alarm data to the outside through the wireless module; when concentration data CT2After increasing for time T2And keeping the same, generating third alarm data by the processor, and transmitting the third alarm data to the outside through the wireless module.
- 2. The kinds of domestic gas intelligent monitoring system of claim 1, further comprising an AC controllable switch, the AC controllable switch is connected to a power bus in a room where the gas system is located, the processor is connected to a control end of the AC controllable switch, and the processor outputs a voltage signal to the AC controllable switch to turn on the AC controllable switch.
- 3. The kinds of household gas intelligent monitoring system of claim 2, wherein a second gas concentration threshold is set in the processor, the second gas concentration threshold is greater than a th gas concentration threshold, when the concentration data CT1Continuously increasing at time T1, the processor generates th alarm data, and the processor simultaneously transmits the concentration data CT1The maximum value at time T1 is compared with the second fuel gas concentration threshold value if concentration data CT1At a time T1 when the maximum value is greater than the second fuel gas concentration threshold, the processor stops outputting the voltage signal to the ac controllable switch, causing the ac controllable switch to open.
- 4. The intelligent kinds of household gas monitoring system of claim 3, wherein when the concentration data increases to C ' within the time T1, the processor compares the concentration data C ' with a second gas concentration threshold, and if the concentration data C ' is greater than the second gas concentration threshold, the processor stops outputting the voltage signal to the AC controllable switch to turn off the AC controllable switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911012767.5A CN110736030A (en) | 2019-10-23 | 2019-10-23 | household gas intelligent monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911012767.5A CN110736030A (en) | 2019-10-23 | 2019-10-23 | household gas intelligent monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110736030A true CN110736030A (en) | 2020-01-31 |
Family
ID=69271025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911012767.5A Pending CN110736030A (en) | 2019-10-23 | 2019-10-23 | household gas intelligent monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110736030A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564024A (en) * | 2020-05-25 | 2020-08-21 | 安徽复盛信息科技有限公司 | Automatic protection method and system based on dangerous gas monitoring alarm |
| CN112542034A (en) * | 2020-12-04 | 2021-03-23 | 广州燃气集团有限公司 | Method, system and equipment for identifying micro-small flow leakage of intelligent gas meter |
| CN115019479A (en) * | 2022-02-22 | 2022-09-06 | 深圳市朗鑫智能科技有限公司 | Method and system for processing gas leakage by using gas detection alarm |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6548899A (en) * | 1999-12-24 | 2001-07-12 | Aryan Investments Limited | Automatic water protection unit |
| JP2001349829A (en) * | 2000-06-06 | 2001-12-21 | Hochiki Corp | Gas monitoring device |
| CN102364538A (en) * | 2011-09-28 | 2012-02-29 | 无锡艾德里安科技有限公司 | Inflammable gas detection alarm and poweroff protection device |
| CN103335793A (en) * | 2013-07-05 | 2013-10-02 | 博益(天津)气动技术研究所有限公司 | System and method for finding leakage point based on differential method |
| WO2014078298A1 (en) * | 2012-11-13 | 2014-05-22 | Massachusetts Institute Of Technology | Leak detection apparatus |
| CN205806946U (en) * | 2016-07-05 | 2016-12-14 | 浙江艾克米信息科技有限公司 | A kind of kitchen fuel gas conveying anti-leak detection device |
| CN206361416U (en) * | 2016-12-26 | 2017-07-28 | 北京理工大学 | Multichannel monitors and can quickly position the gas monitoring system of leakage in real time |
| CN206711349U (en) * | 2017-04-20 | 2017-12-05 | 江苏中安科技服务有限公司 | A kind of gas safety detection warning device |
| CN109945242A (en) * | 2019-03-22 | 2019-06-28 | 郦剑飞 | Preventing gas leakage system and method and the method for judging gas leakage position |
| CN110285930A (en) * | 2018-11-15 | 2019-09-27 | 杭州超钜科技有限公司 | The continuous leak detection system of one-component and its leak hunting method |
-
2019
- 2019-10-23 CN CN201911012767.5A patent/CN110736030A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6548899A (en) * | 1999-12-24 | 2001-07-12 | Aryan Investments Limited | Automatic water protection unit |
| JP2001349829A (en) * | 2000-06-06 | 2001-12-21 | Hochiki Corp | Gas monitoring device |
| CN102364538A (en) * | 2011-09-28 | 2012-02-29 | 无锡艾德里安科技有限公司 | Inflammable gas detection alarm and poweroff protection device |
| WO2014078298A1 (en) * | 2012-11-13 | 2014-05-22 | Massachusetts Institute Of Technology | Leak detection apparatus |
| CN103335793A (en) * | 2013-07-05 | 2013-10-02 | 博益(天津)气动技术研究所有限公司 | System and method for finding leakage point based on differential method |
| CN205806946U (en) * | 2016-07-05 | 2016-12-14 | 浙江艾克米信息科技有限公司 | A kind of kitchen fuel gas conveying anti-leak detection device |
| CN206361416U (en) * | 2016-12-26 | 2017-07-28 | 北京理工大学 | Multichannel monitors and can quickly position the gas monitoring system of leakage in real time |
| CN206711349U (en) * | 2017-04-20 | 2017-12-05 | 江苏中安科技服务有限公司 | A kind of gas safety detection warning device |
| CN110285930A (en) * | 2018-11-15 | 2019-09-27 | 杭州超钜科技有限公司 | The continuous leak detection system of one-component and its leak hunting method |
| CN109945242A (en) * | 2019-03-22 | 2019-06-28 | 郦剑飞 | Preventing gas leakage system and method and the method for judging gas leakage position |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564024A (en) * | 2020-05-25 | 2020-08-21 | 安徽复盛信息科技有限公司 | Automatic protection method and system based on dangerous gas monitoring alarm |
| CN112542034A (en) * | 2020-12-04 | 2021-03-23 | 广州燃气集团有限公司 | Method, system and equipment for identifying micro-small flow leakage of intelligent gas meter |
| CN112542034B (en) * | 2020-12-04 | 2022-03-25 | 广州燃气集团有限公司 | Method, system and equipment for identifying micro-small flow leakage of intelligent gas meter |
| CN115019479A (en) * | 2022-02-22 | 2022-09-06 | 深圳市朗鑫智能科技有限公司 | Method and system for processing gas leakage by using gas detection alarm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11951863B2 (en) | Method and apparatus for management of current load to an electric vehicle charging station in a residence | |
| CN110736030A (en) | household gas intelligent monitoring system | |
| US9366702B2 (en) | Devices and methods for determining whether an electrical device or component can sustain variations in voltage | |
| CN205485532U (en) | Circuit intelligent management system | |
| TWI467879B (en) | Intelligent tap | |
| US10567853B2 (en) | Smart grid appliance control | |
| CN102460187A (en) | Power monitoring system | |
| CN112902294B (en) | Capacity-increase-free electric heating control method and system | |
| CN106482354A (en) | A kind of electric heater water outlet power-off and earth leakage protective device | |
| US10544954B2 (en) | System and method for monitoring an energy consuming appliance | |
| US20100219974A1 (en) | System controlling electric power and system controlling valve | |
| CN214791337U (en) | Power distribution valve and central range hood system | |
| CN204029141U (en) | A kind of wireless water logging Inductance valve | |
| TW201448401A (en) | Intelligent household electricity monitoring system | |
| US9141116B2 (en) | Auxillary switch for multiplexed control and ground signal from a thermostat | |
| CN211349028U (en) | Internet of things household power supply control system | |
| KR100984559B1 (en) | Multitab which is included a energy saving reinforcement function and a security reinforcement function | |
| CN207677501U (en) | Intelligent domestic system interior power monitors system | |
| CN206379773U (en) | A kind of electric water bottle | |
| KR20210019875A (en) | Low priced building automatic system utilzing power line communication | |
| CN204216656U (en) | The supply unit of breaker controller and breaker controller, circuit breaker | |
| CN104362583B (en) | Burst current detection switch | |
| CN203070076U (en) | Indoor intelligent AC (alternating-current) power supply switching system | |
| CN213334554U (en) | Full-electric kitchen power consumption safety monitoring system | |
| CN102759944B (en) | Power control device and method of domestic appliance |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200131 |
|
| WD01 | Invention patent application deemed withdrawn after publication |