CN210639729U - Gas wisdom terminal management system - Google Patents
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- CN210639729U CN210639729U CN201922028357.1U CN201922028357U CN210639729U CN 210639729 U CN210639729 U CN 210639729U CN 201922028357 U CN201922028357 U CN 201922028357U CN 210639729 U CN210639729 U CN 210639729U
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- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000009423 ventilation Methods 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 227
- 239000002737 fuel gas Substances 0.000 claims description 15
- 239000004973 liquid crystal related substance Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- 230000000007 visual effect Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims 1
- 230000003993 interaction Effects 0.000 abstract description 3
- 238000007726 management method Methods 0.000 description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Abstract
The utility model discloses a gas wisdom terminal management system. The system comprises an intelligent gas device, an exhaust ventilation device, an intelligent fire-fighting device, a mobile terminal and a gas company background server system, the intelligent gas system comprises an intelligent gas meter, the intelligent gas meter comprises a shell and a base meter arranged in the shell, a controller, a combustible gas concentration detector, an alarm module and a communication module, the base meter is connected with a gas main pipeline, the gas main pipeline is provided with a valve driving module, the base meter is provided with a metering module, the valve driving module, the combustible gas concentration detector, the alarm module, the communication module, the exhaust ventilation device, the intelligent fire-fighting device, the mobile terminal is connected with the controller, the controller is respectively connected with the mobile terminal through the communication module, and the gas company background server carries out data interaction. The utility model provides a gas wisdom terminal management system can monitor often to terminal gas system, accurately detects and in time sends alarm information.
Description
Technical Field
The utility model relates to a technical field is carried in the gas, especially relates to a gas wisdom terminal management system.
Background
With the rapid development of the gas industry, natural gas becomes the most important consumption energy in the industries of resident life, industry, commerce and the like as primary energy and clean energy. While the urban gas brings positive effects to the life and economic development of residents, the development of cities and society is influenced by the accompanying safety problem. The safety management problem of the gas pipe network becomes the first problem of relevant managers. According to incomplete statistics, gas accidents occur in 2017 all over the country 702, wherein the gas accidents of residents 465 account for 67% of accidents; in 2018, the gas accidents 616 occur all over the country, wherein the gas accidents 348 of residents account for 56% of accidents. The gas safety of the household users becomes an urgent problem to be solved. Gas explosion occurs when gas leaks reach an explosion critical point, in combination with detonation operations. The main reasons for gas accidents are that the gas appliances are out of service, the gas appliances are not operated properly in daily use, and the terminal gas system cannot be monitored in real time. Safe gas utilization by end users becomes a key for preventing gas accidents. The conventional natural gas terminal metering system stays at the traditional simple control stage, and cannot realize the functions of prediction early warning, automatic disposal, remote transmission monitoring, evidence obtaining and tracing. The popularization of the technology of the Internet of things, the demand of the construction and development of smart cities, and the technical innovation and the management upgrade of smart gas are imperative. The development of the gas enterprise is necessarily assisted by the application of the intelligent gas control system, convenience is brought to the life of a terminal user, and more layers of guarantee are provided for safe gas utilization.
Disclosure of Invention
The utility model provides a gas wisdom terminal management system can monitor often to terminal gas system, accurately detects and in time sends alarm information, notifies the user, and convenient to use is more humanized, has guaranteed people's the security of the lives and property.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a gas wisdom terminal management system, includes intelligent gas device, exhaust ventilation unit, intelligent fire control unit, mobile terminal and gas company backstage server system, exhaust ventilation unit sets up in the kitchen, intelligent gas system includes intelligent gas table, intelligent gas table includes the casing and sets up basic table, controller, combustible gas concentration detector, alarm module and communication module in the casing, basic table and gas main line are connected, be provided with valve drive module on the gas main line, be provided with metering module on the basic table, metering module, valve drive module, combustible gas concentration detector, alarm module, communication module, exhaust ventilation unit, intelligent fire control unit, mobile terminal all with the controller is connected, the controller pass through communication module respectively with mobile terminal, mobile terminal, The controller is preset with a first gas concentration value and used for sending a primary alarm instruction to the alarm module when the gas concentration value detected by the combustible gas concentration detector is judged to be greater than the first gas concentration value, starting the exhaust ventilation device and simultaneously cutting off gas supply of a gas main pipeline through the valve driving module; the controller is preset with a second fuel gas concentration value and is used for sending a secondary alarm instruction to the alarm module when the fuel gas concentration value detected by the combustible gas concentration detector is judged to be greater than the second fuel gas concentration value, and the secondary alarm instruction is remotely transmitted to the mobile terminal through the intelligent gas meter; and the controller is preset with a third gas concentration value and used for sending a three-level alarm instruction to the alarm module when the gas concentration value detected by the combustible gas concentration detector is judged to be greater than the third gas concentration value, remotely transmitting the three-level alarm instruction to the gas company background server system through the intelligent gas meter and starting the intelligent fire fighting device.
Optionally, the first gas concentration value is smaller than the second gas concentration value, and the second gas concentration value is smaller than the third gas concentration value.
Optionally, the valve driving module includes a valve driving chip and an electromagnetic valve, one end of the valve driving chip is connected to the electromagnetic valve, and the other end of the valve driving chip is connected to the controller.
Optionally, intelligence fire control unit includes the condition of a fire detection sensor, the condition of a fire detection sensor with controller wireless connection, and the condition of a fire detection sensor can detect naked light, smog.
Optionally, the exhaust ventilation device comprises a motor and an exhaust fan, one end of the motor is connected with the controller, and the other end of the motor is connected with the exhaust fan.
Optionally, a liquid crystal display screen is arranged on the outer surface of the casing, and the liquid crystal display screen is connected with the controller.
Optionally, the intelligent gas meter further comprises a camera, the camera is arranged on the outer surface of the shell and located above the liquid crystal display screen, and the camera is connected with the controller.
Optionally, the alarm module is a buzzer or an audible and visual alarm.
Optionally, the mobile terminal at least includes a smart phone, a notebook computer, a smart wearable device, and a tablet computer.
Optionally, the intelligent gas meter further comprises a reset button, the reset button is arranged on the outer side wall of the shell, and the reset button is connected with the controller.
Compared with the prior art, the technology has the following beneficial effects:
the utility model provides a pair of gas wisdom terminal management system, metering module connect the base table, and metering module measures the gas throughput in the gas pipeline to the transmission that the signal of telecommunication was sent is transmitted to the controller, the controller passes through communication module with real-time gas throughput information send to gas company backstage server system; the camera of setting on intelligent gas table casing can carry out real-time supervision to the security condition at home, and the user looks over the security condition at home through computer or cell-phone APP software are long-range. The combustible gas concentration detector is used for monitoring the gas concentration in a gas utilization area, can timely and effectively suppress gas leakage, can effectively transmit gas information to a background server system and a mobile terminal of a gas company through the gathering of the controller in real time, is effective in real time, cannot generate the stagnation and the discharge of the information, and facilitates the gathering of the information and the expansion of subsequent work. The controller is preset with a first gas concentration value and used for sending a primary alarm instruction to the alarm module when the gas concentration value detected by the combustible gas concentration detector is judged to be greater than the first gas concentration value, starting the exhaust ventilation device and simultaneously cutting off gas supply of a gas main pipeline through the valve driving module; the controller is preset with a second fuel gas concentration value and is used for sending a secondary alarm instruction to the alarm module when the fuel gas concentration value detected by the combustible gas concentration detector is judged to be greater than the second fuel gas concentration value, and the secondary alarm instruction is remotely transmitted to the mobile terminal through the intelligent gas meter; and the controller is preset with a third gas concentration value and used for sending a three-level alarm instruction to the alarm module when the gas concentration value detected by the combustible gas concentration detector is judged to be greater than the third gas concentration value, remotely transmitting the three-level alarm instruction to the gas company background server system through the intelligent gas meter and starting the intelligent fire fighting device. After the danger of gas leakage is relieved, the reset button is pressed, the controller receives the level signal, a valve opening command is sent to the valve driving chip, the electromagnetic valve is opened by the valve driving chip, and a user can reuse the gas.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic block diagram of a gas intelligent terminal management system according to an embodiment of the present invention;
fig. 2 is a flowchart of the operation of the intelligent gas terminal management system according to the embodiment of the present invention;
fig. 3 is a flow chart of the operation of the natural gas alarm of the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a gas wisdom terminal management system can monitor often to terminal gas system, accurately detects and in time sends alarm information, notifies the user, and convenient to use is more humanized, has guaranteed people's the security of the lives and property.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is the utility model provides a gas wisdom terminal management system's functional block diagram, as shown in fig. 1, a gas wisdom terminal management system, including intelligent gas device, exhaust ventilation unit, intelligent fire control unit, mobile terminal 15 and gas company backstage server system 16, exhaust ventilation unit sets up in the kitchen, intelligent gas system includes intelligent gas table, intelligent gas table includes the casing and sets up base table 1, controller 8, combustible gas concentration detector 7, alarm module 5 and communication module 14 in the casing, base table 1 is connected with the gas main line, be provided with valve drive module on the gas main line, be provided with metering module 2 on the base table, metering module 2, valve drive module, combustible gas concentration detector 7, alarm module 5, communication module 14, exhaust ventilation unit, The intelligent fire fighting device and the mobile terminal 15 are connected with the controller 8, and the controller 8 is respectively in data interaction with the mobile terminal 15 and the gas company background server system 16 through the communication module 14. The first gas concentration value is smaller than the second gas concentration value, and the second gas concentration value is smaller than the third gas concentration value. The valve driving module comprises a valve driving chip 4 and an electromagnetic valve 3, one end of the valve driving chip 4 is connected with the electromagnetic valve 3, and the other end of the valve driving chip 4 is connected with the controller 8. Intelligence fire control unit includes fire detection sensor 11, fire detection sensor 11 with 8 wireless connection of controller, and fire detection sensor 11 can detect naked light, smog. Exhaust ventilation unit includes motor 9 and exhaust fan 10, motor 9's one end with control the controller 8 is connected, motor 9's the other end with exhaust fan 10 is connected. And a liquid crystal display screen 12 is arranged on the outer surface of the shell, and the liquid crystal display screen 12 is connected with the controller 8. The intelligent gas meter further comprises a camera 13, the camera 13 is arranged on the outer surface of the shell and located above the liquid crystal display screen 12, and the camera 13 is connected with the controller 8. The alarm module 5 is a buzzer or an audible and visual alarm. The mobile terminal 15 at least comprises a smart phone, a notebook computer, intelligent wearable equipment and a tablet computer. The intelligent gas meter further comprises a reset button 6, the reset button 6 is arranged on the outer side wall of the shell, and the reset button 6 is connected with the controller 8. The metering module 2 is a counter. The communication module 14 is a bluetooth communication module, a GPRS communication module or a wireless communication module. The gas meter is characterized in that a payment button is arranged on the side face of the gas meter base meter, after the payment button is pressed down, the controller 8 sends gas usage data to the rear-end gas metering manager through the communication module 14, the rear-end gas metering manager receives the data and then displays two-dimensional code information to be paid on the liquid crystal display 12 through the communication module, and a user scans the two-dimensional code to pay. The smart gas meter is internally provided with a mobile phone SIM card, the SIM card is inserted to activate a meter valve and open a Bluetooth communication module, and the smart gas meter can be in two-way real-time communication with a background server system 16 and a mobile terminal 15 of a gas company to realize functions of payment, repair and the like. The two-dimensional code can be posted on the gas meter, and a gas company scans the two-dimensional code of the gas meter when installing the gas meter to associate the client with the gas meter. The customer downloads APP of the gas company by scanning the two-dimensional code, and the obtained APP provides services such as gas data query, payment, submission, information query and the like for the customer by the gas company through a wireless and wired transmission system. Once the customer application for installation or maintenance is accepted, the engineering constructor can provide real-time quotation information to the customer in an APP or WeChat mode and the like after arriving at the site, and the customer can pay installation or maintenance cost on the site through a payment treasure or WeChat. The client can also inquire the status of the application for application through APP or WeChat. And a metering module is arranged on the base meter and is connected with the base meter.
The gas company background server system comprises a terminal device manager, a client manager, a data manager, a rear-end gas metering manager, a gas selling manager and an App server, wherein the terminal device manager is used for starting and stopping all terminal devices related to gas through mobile phone setting, and an owner can selectively set starting and stopping time through mobile phone starting and stopping and timing starting and stopping; the App server is used for the owner to pay by the aid of the App terminal, repair gas, manage complaints, acquire working condition parameters of a gas burning gas pipe network, information of a responsible person and the like; the data manager is used for uploading data such as gas consumption, gas consumption time and gas consumption terminal equipment types of gas users to the cloud end at any time, and the central control room can store, collect and analyze basic data such as gas consumption, gas consumption peak/valley time periods and gas consumption equipment types in the region. And the rear-end gas metering manager is used for acquiring, storing and managing the acquired flow data of the intelligent gas meter in real time. The client manager is used for managing the basic information of the client and is provided with a registration port, a modification port and an inquiry port; the gas selling manager is used for carrying out statistical management on gas purchasing quantity of a customer and is provided with gas purchasing, gas returning/cleaning and gas supplementing ports; the data manager is used for data information management and is provided with a data backup port, a data recovery port and a data management port.
Fig. 2 is the utility model discloses gas wisdom terminal management system's work flow chart, as shown in fig. 2, controller 8 passes through communication module 14 respectively with mobile terminal 15 gas company backstage server system 16 carries out the data interaction. The metering module 2 and the combustible gas concentration detector 7 respectively transmit the collected gas consumption and gas concentration to the mobile terminal 15 and the gas company background server system 16 through the data transmission module. The mobile terminal 15 can pay, check and report the terminal device; the gas company background server system 16 can perform big data processing and remote control on the terminal equipment.
Fig. 3 is a flow chart of the natural gas alarm of the embodiment of the present invention, as shown in fig. 3, the controller 8 presets a first gas concentration value, and is configured to send a first-level alarm instruction to the alarm module 5, start the exhaust ventilation device, and simultaneously cut off the gas supply of the gas main line through the valve driving module when determining that the gas concentration value detected by the combustible gas concentration detector 7 is greater than the first gas concentration value; the controller 8 is preset with a second fuel gas concentration value, and is configured to send a secondary alarm instruction to the alarm module 5 when it is determined that the fuel gas concentration value detected by the combustible gas concentration detector 7 is greater than the second fuel gas concentration value, and remotely transmit the secondary alarm instruction to the mobile terminal 15 through an intelligent gas meter; and a third gas concentration value is preset in the controller, and is used for sending a three-level alarm instruction to the alarm module 5 when the gas concentration value detected by the combustible gas concentration detector 7 is judged to be greater than the third gas concentration value, transmitting the three-level alarm instruction to the gas company background server system 16 through the intelligent gas meter, and starting the intelligent fire fighting device.
The utility model provides a pair of gas wisdom terminal management system, metering module connect the base table, and metering module measures the gas throughput in the gas pipeline to the transmission that the signal of telecommunication was sent is transmitted to the controller, the controller passes through communication module with real-time gas throughput information send to gas company backstage server system; the camera of setting on intelligent gas table casing can carry out real-time supervision to the security condition at home, and the user looks over the security condition at home through computer or cell-phone APP software are long-range. The combustible gas concentration detector is used for monitoring the gas concentration in a gas utilization area, can timely and effectively suppress gas leakage, can effectively transmit gas information to a background server system and a mobile terminal of a gas company through the gathering of the controller in real time, is effective in real time, cannot generate the stagnation and the discharge of the information, and facilitates the gathering of the information and the expansion of subsequent work. The controller is preset with a first gas concentration value and used for sending a primary alarm instruction to the alarm module when the gas concentration value detected by the combustible gas concentration detector is judged to be greater than the first gas concentration value, starting the exhaust ventilation device and simultaneously cutting off gas supply of a gas main pipeline through the valve driving module; the controller is preset with a second fuel gas concentration value and is used for sending a secondary alarm instruction to the alarm module when the fuel gas concentration value detected by the combustible gas concentration detector is judged to be greater than the second fuel gas concentration value, and the secondary alarm instruction is remotely transmitted to the mobile terminal through the intelligent gas meter; and the controller is preset with a third gas concentration value and used for sending a three-level alarm instruction to the alarm module when the gas concentration value detected by the combustible gas concentration detector is judged to be greater than the third gas concentration value, remotely transmitting the three-level alarm instruction to the gas company background server system through the intelligent gas meter and starting the intelligent fire fighting device. After the danger of gas leakage is relieved, the reset button is pressed, the controller receives the level signal, a valve opening command is sent to the valve driving chip, the electromagnetic valve is opened by the valve driving chip, and a user can reuse the gas. The utility model provides a gas wisdom terminal management system can monitor often to terminal gas system, accurately detects and in time sends alarm information, notifies the user, and convenient to use is more humanized, has guaranteed people's the security of the lives and property.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. The utility model provides a gas wisdom terminal management system, its characterized in that, includes intelligent gas device, exhaust ventilation unit, intelligent fire control unit, mobile terminal and gas company backstage server system, exhaust ventilation unit sets up in the kitchen, intelligent gas device includes intelligent gas table, intelligent gas table includes the casing and sets up base table, controller, combustible gas concentration detector, alarm module and the communication module in the casing, the base table is connected with the gas main line, be provided with valve drive module on the gas main line, be provided with metering module on the base table, metering module, valve drive module, combustible gas concentration detector, alarm module, communication module, exhaust ventilation unit, intelligent fire control unit, mobile terminal all with the controller is connected, the controller pass through communication module respectively with mobile terminal, The controller is preset with a first gas concentration value and used for sending a primary alarm instruction to the alarm module when the gas concentration value detected by the combustible gas concentration detector is judged to be greater than the first gas concentration value, starting the exhaust ventilation device and simultaneously cutting off gas supply of a gas main pipeline through the valve driving module; the controller is preset with a second fuel gas concentration value and is used for sending a secondary alarm instruction to the alarm module when the fuel gas concentration value detected by the combustible gas concentration detector is judged to be greater than the second fuel gas concentration value, and the secondary alarm instruction is remotely transmitted to the mobile terminal through the intelligent gas meter; and the controller is preset with a third gas concentration value and used for sending a three-level alarm instruction to the alarm module when the gas concentration value detected by the combustible gas concentration detector is judged to be greater than the third gas concentration value, remotely transmitting the three-level alarm instruction to the gas company background server system through the intelligent gas meter and starting the intelligent fire fighting device.
2. The gas intelligent terminal management system according to claim 1, wherein the valve driving module comprises a valve driving chip and an electromagnetic valve, one end of the valve driving chip is connected with the electromagnetic valve, and the other end of the valve driving chip is connected with the controller.
3. The intelligent gas terminal management system as claimed in claim 1, wherein the intelligent fire fighting device comprises a fire detection sensor, the fire detection sensor is wirelessly connected with the controller, and the fire detection sensor can detect open fire and smoke.
4. The gas intelligent terminal management system as claimed in claim 1, wherein the exhaust ventilation device comprises a motor and an exhaust fan, one end of the motor is connected with the controller, and the other end of the motor is connected with the exhaust fan.
5. The gas intelligent terminal management system as claimed in claim 1, wherein a liquid crystal display is disposed on an outer surface of the housing, and the liquid crystal display is connected to the controller.
6. The gas intelligent terminal management system according to claim 5, wherein the intelligent gas meter further comprises a camera, the camera is arranged on the outer surface of the housing and located above the liquid crystal display, and the camera is connected with the controller.
7. The gas intelligent terminal management system according to claim 1, wherein the alarm module is a buzzer or an audible and visual alarm.
8. The gas intelligent terminal management system according to claim 1, wherein the mobile terminal at least comprises a smart phone, a notebook computer, a smart wearable device and a tablet computer.
9. The gas intelligent terminal management system according to claim 1, wherein the intelligent gas meter further comprises a reset button, the reset button is disposed on an outer side wall of the housing, and the reset button is connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922028357.1U CN210639729U (en) | 2019-11-22 | 2019-11-22 | Gas wisdom terminal management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922028357.1U CN210639729U (en) | 2019-11-22 | 2019-11-22 | Gas wisdom terminal management system |
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| CN210639729U true CN210639729U (en) | 2020-05-29 |
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| CN201922028357.1U Expired - Fee Related CN210639729U (en) | 2019-11-22 | 2019-11-22 | Gas wisdom terminal management system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111862542A (en) * | 2020-07-31 | 2020-10-30 | 广州金燃智能系统有限公司 | Intelligent gas service management system |
| CN113551732A (en) * | 2021-07-21 | 2021-10-26 | 山东建安实业有限公司 | Intelligent gas meter |
| CN113722557A (en) * | 2021-08-25 | 2021-11-30 | 广州东部发展燃气有限公司 | Method and device for determining gas supply and sale difference |
| CN114582098A (en) * | 2021-12-15 | 2022-06-03 | 浙江九龙物联科技有限公司 | Kitchen safety coefficient that gas company linked and reported to police |
-
2019
- 2019-11-22 CN CN201922028357.1U patent/CN210639729U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111862542A (en) * | 2020-07-31 | 2020-10-30 | 广州金燃智能系统有限公司 | Intelligent gas service management system |
| CN113551732A (en) * | 2021-07-21 | 2021-10-26 | 山东建安实业有限公司 | Intelligent gas meter |
| CN113722557A (en) * | 2021-08-25 | 2021-11-30 | 广州东部发展燃气有限公司 | Method and device for determining gas supply and sale difference |
| CN113722557B (en) * | 2021-08-25 | 2024-05-24 | 广州东部发展燃气有限公司 | Method and device for determining fuel gas supply and distribution difference |
| CN114582098A (en) * | 2021-12-15 | 2022-06-03 | 浙江九龙物联科技有限公司 | Kitchen safety coefficient that gas company linked and reported to police |
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Address after: Floor 8, 9 and 10, R & D center of Zhongguancun innovation base, no.369 Huiyang street, Baoding City, Hebei Province 071000 Patentee after: HEBEI CHENGXING MUNICIPAL DESIGNING INSTITUTE Co.,Ltd. Address before: No. 671, Sanfeng Road, Baoding City, Hebei Province 071000 Patentee before: HEBEI CHENGXING MUNICIPAL DESIGNING INSTITUTE Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20200529 |