CN112396811A - Fire-away comprehensive monitoring and early warning system and method for kitchen - Google Patents
Fire-away comprehensive monitoring and early warning system and method for kitchen Download PDFInfo
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- CN112396811A CN112396811A CN202011166224.1A CN202011166224A CN112396811A CN 112396811 A CN112396811 A CN 112396811A CN 202011166224 A CN202011166224 A CN 202011166224A CN 112396811 A CN112396811 A CN 112396811A
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- monitoring
- terminal
- early warning
- alarm
- kitchen
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- 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
- G08B21/18—Status alarms
- G08B21/22—Status alarms responsive to presence or absence of persons
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- 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
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- 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
-
- 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
- G08B25/14—Central alarm receiver or annunciator arrangements
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
Abstract
The invention relates to a kitchen fire-away comprehensive monitoring and early warning system which comprises a field acquisition monitoring terminal, at least one intelligent communication gateway, a wireless communication network, an alarm server and an alarm terminal, wherein the field acquisition monitoring terminal is connected with the intelligent communication gateway through the wireless communication network, the intelligent communication gateway is respectively connected with the alarm server and the alarm terminal through the wireless communication network, and the alarm server is connected with the alarm terminal through the wireless communication network. The early warning method comprises three steps of system construction, early warning operation, active monitoring and the like. On one hand, the system has simple structure, simple and flexible operation, and good data communication and system expansion capability, thereby greatly improving the flexibility and convenience of the operation of the early warning system; on the other hand, the early warning operation is flexible and convenient, the early warning information is comprehensive, and the requirement of synchronous monitoring operation on the operation state of the cooker can be met, so that the reliability and the accuracy of the early warning operation are greatly improved.
Description
Technical Field
The invention relates to a kitchen stove operation monitoring system, in particular to a kitchen fire-away comprehensive monitoring and early warning system and a detection method.
Background
At present, in kitchen operation, because of busy work, negligence and error, misoperation and stove damage, the gas leakage caused by equipment failure and stove equipment damage caused by improper operation of personnel or no-site personnel are easily caused, thereby further causing food deterioration, fire and even gas explosion and other safety accidents, aiming at the problem, although a large number of monitoring systems for monitoring the working state and the stove operation state of the stove operating personnel and alarming when the operating personnel works on the stove are provided, for example, a technical scheme or products such as a post-catering kitchen cooking bench fire-to-person intelligent early warning and prevention and control system with the patent application number of '201910931603.6', a fire-to-person monitoring and supervision and alarming system with the patent application number of '201922255018.7', and the like can meet the requirements for monitoring and early warning the states of the kitchen stove and the personnel to a certain extent, on one hand, the system has a structural structure for washing hair, poor system expansion capability and relatively high adjustment and maintenance difficulty and cost; on the other hand is in operation, often all gather kitchen utensils peripheral environment information through sensor equipment such as human body sensor, smoke transducer, information acquisition is comparatively single, and the alarm mode is passive, just can carry out passive recognition promptly when taking place dangerous condition, can't realize carrying out kitchen utensils running state control in real time and can't realize initiatively carrying out the remote monitoring operation to kitchen utensils running state, consequently still can't effectively satisfy the needs of carrying out comprehensive effective monitoring operation to kitchen utensils running state.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a comprehensive monitoring and early warning system and method for the kitchen use of fire leaving, which can meet the requirement of synchronous monitoring operation on the operation state of a kitchen range, thereby greatly improving the reliability and accuracy of the early warning operation.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a kitchen fire-away comprehensive monitoring and early warning system comprises a field acquisition monitoring terminal, an intelligent communication gateway, wireless communication networks, a warning server and a warning terminal, wherein at least one field acquisition monitoring terminal is connected with the intelligent communication gateway through the wireless communication networks, the intelligent communication gateway is respectively connected with the warning server and the warning terminal through the wireless communication networks, and the warning server is connected with the warning terminal through the wireless communication networks.
Furthermore, when the number of the on-site acquisition monitoring terminals is two or more, the on-site acquisition monitoring terminals are connected in parallel, each on-site acquisition monitoring terminal comprises a bearing base, a detection box, a bearing partition plate, a gas sensor, a human body sensor, a monitoring camera and a driving circuit, the bearing base is of a closed cavity structure with a rectangular cross section, the rear end surface of the bearing base is provided with at least four positioning blocks uniformly distributed around the axis of the bearing base, the front end surface of the bearing base is hinged with the lower end surface of the detection box through a turntable mechanism, the detection box is of a closed cavity structure, a plurality of through holes are uniformly distributed on the side surface of the detection box, the bearing partition plate is embedded in the detection box and is coaxially distributed with the detection box, the detection box is divided into a human body detection chamber and a gas detection chamber from top to bottom, at least one gas sensor is embedded in, the gas sensor, the human body sensor, the monitoring camera and the turntable mechanism are respectively embedded in the upper end face of the detection box, the axes of the human body sensor and the monitoring camera are distributed in parallel and form an included angle of 0-90 degrees with the horizontal plane, and the driving circuit is embedded in the bearing base and is respectively electrically connected with the gas sensor, the human body sensor, the monitoring camera and the turntable mechanism.
Furthermore, the bearing partition plate is provided with positioning holes which are coaxially distributed with the bearing partition plate, a drainage fan is arranged in the positioning holes, the drainage fan and the positioning holes are coaxially distributed, the lower end face of the drainage fan exceeds the lower end face of the bearing partition plate by at least 3 mm, the human body detection chamber and the gas detection chamber are communicated through the positioning holes and the drainage fan, and the drainage fan is electrically connected with the driving circuit.
Furthermore, the turntable mechanism and the bearing base are mutually perpendicular and intersected through at least two guide sliding rails which are distributed in parallel on the front end face of the bearing base.
Furthermore, the driving circuit is a circuit system based on any one of a DSP chip and an FPGA chip, and is additionally provided with at least one power supply wiring terminal and a wireless communication circuit, wherein the power supply wiring terminal is embedded in the lower end face of the bearing base.
Furthermore, the alarm terminal comprises an intelligent terminal and an acousto-optic integrated buzzer, wherein the intelligent terminal is electrically connected with the acousto-optic integrated buzzer, and the intelligent terminal is any one or more of a PC (personal computer), an industrial computer and a mobile intelligent communication terminal.
An early warning method of a kitchen fire-away comprehensive monitoring early warning system comprises the following steps;
s1, system construction, firstly constructing a remote alarm server, then establishing data connection between the intelligent communication gateway to be accessed into the system and the remote alarm server through a wireless communication network, then the site collecting monitoring terminal and the alarm terminal of each system to be accessed are connected with the intelligent communication gateway, finally the remote alarm server distributes independent communication addressing addresses for each intelligent communication gateway, site collecting monitoring terminal and alarm terminal respectively, and one alarm terminal and at least one site collecting monitoring terminal form a working group, then each on-site acquisition monitoring terminal is installed on the wall corresponding to the kitchen stove, and the human body sensor and the monitoring camera of the on-site acquisition monitoring terminal are intersected with the axis of the stove, and the intersection point is positioned at least 5 cm above the stove, so that the construction operation of the early warning system is completed;
s2, performing early warning operation, wherein when the step S1 is completed and the stove is operated, firstly, a gas sensor of the on-site acquisition monitoring terminal detects the gas concentration in the surrounding environment of the stove in use, and a human body sensor and a monitoring camera of the on-site acquisition monitoring terminal monitor, identify and monitor the operating personnel in front of the stove and identify and monitor the use state of the stove; then, performing operation analysis on the detected data by using a driving circuit, and feeding back the information of the operator to a remote alarm server by using a field acquisition monitoring terminal when the gas concentration around the cooker is in a safe state, the cooker is in a non-use state and the cooker has the operator to operate; when the gas concentration around the cooker rises to a critical value and the cooker is in any one of two states of use and no operation by an operator, the driving circuit simultaneously sends alarm information to the remote alarm server and the alarm terminal for early warning;
and S3, actively monitoring, wherein in the operation of the invention, a request can be sent to a remote alarm server through an alarm terminal, and then the current kitchen range operation state of the monitoring terminal is acquired on site to carry out synchronous monitoring.
Further, in the step S1, when a plurality of field collection monitoring terminals are provided in the same working group, the field collection monitoring terminals are connected in parallel, and when two or more alarm terminals are provided in the same working group, the intelligent terminals of the alarm terminals are connected via a wireless communication network.
Further, in the step S2, the alarm information includes the concentration of the leaked fuel gas around the current cooker, the operating state video information of the cooker, and the identity information of the operator of the cooker.
On one hand, the system has simple structure, simple and flexible operation and good data communication and system expansion capacity, thereby greatly improving the flexibility and the convenience of the operation of the early warning system and effectively reducing the difficulty and the cost of the construction and the maintenance operation of the early warning system; on the other hand, the early warning operation is flexible and convenient, the early warning information is comprehensive, and the requirement of synchronous monitoring operation on the operation state of the cooker can be met, so that the reliability and the accuracy of the early warning operation are greatly improved.
Drawings
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic structural diagram of a field acquisition monitoring terminal;
FIG. 3 is a flow chart of the method of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 and 2, a kitchen-used fire-away comprehensive monitoring and early warning system comprises a field acquisition monitoring terminal 1, an intelligent communication gateway 2, a wireless communication network 3, an alarm server 4 and an alarm terminal 5, wherein at least one end of the field acquisition monitoring terminal 1 is connected with the intelligent communication gateway 2 through the wireless communication network 3, the intelligent communication gateway 2 is respectively connected with the alarm server 4 and the alarm terminal 5 through the wireless communication network 3, and the alarm server 4 is connected with the alarm terminal 5 through the wireless communication network 3.
It is important to point out that when the number of the on-site collection monitoring terminals 1 is two or more, the on-site collection monitoring terminals 1 are connected in parallel, the on-site collection monitoring terminal 1 includes a bearing base 101, a detection box 102, a bearing partition 103, a gas sensor 104, a human body sensor 105, a monitoring camera 106 and a driving circuit 107, the bearing base 101 is a closed cavity structure with a rectangular cross section, the rear end surface of the bearing base 101 is provided with at least four positioning blocks 108 uniformly distributed around the axis of the bearing base 101, the front end surface is hinged with the lower end surface of the detection box 102 through a turntable mechanism 109, the detection box 102 is a closed cavity structure, the side surface of the detection box is uniformly provided with a plurality of through holes 109, the bearing partition 103 is embedded in the detection box 102 and coaxially distributed with the detection box 102, and divides the detection box 102 into a human body detection chamber 111 and a gas detection chamber 112 from top to, inlay in detecting the gas detection room 111 of box 102 and with bear the weight of the baffle 103 lower terminal surface and be connected, human body sensor 105, surveillance camera head 106 all inlay in detecting box 102 up end, and human body sensor 105, surveillance camera head 106 axis parallel distribution, and personally submit 0 ° -90 contained angle with the level, drive circuit 107 inlays in bearing the weight of base 101 to respectively with gas sensor 104, human body sensor 105, surveillance camera head 106 and revolving stage mechanism 109 electrical connection.
The gas detection device is characterized in that the bearing partition plate 103 is provided with a positioning hole 6 which is coaxially distributed with the bearing partition plate 103, a drainage fan 7 is arranged in the positioning hole 6, the drainage fan 7 and the positioning hole 6 are coaxially distributed, the lower end face of the drainage fan 7 exceeds the lower end face of the bearing partition plate 103 by at least 3 mm, the human body detection chamber 111 and the gas detection chamber 112 are communicated through the positioning hole 6 and the drainage fan 7, and the drainage fan 7 is electrically connected with the driving circuit 107.
Meanwhile, the turntable mechanism 109 is vertically intersected with the bearing base 101 through at least two guide slide rails 8 which are distributed in parallel on the front end surface of the bearing base 101.
Further preferably, the driving circuit 107 is a circuit system based on any one of a DSP chip and an FPGA chip, and the driving circuit is further provided with at least one power connection terminal 9 and a wireless communication circuit, wherein the power connection terminal 9 is embedded in the lower end surface of the bearing base 101.
In this embodiment, the alarm terminal includes an intelligent terminal and an acousto-optic integrated buzzer, wherein the intelligent terminal is electrically connected with the acousto-optic integrated buzzer, and the intelligent terminal is any one or more of a PC computer, an industrial computer and a mobile intelligent communication terminal.
As shown in fig. 3, the early warning method of the kitchen-used fire-away comprehensive monitoring early warning system comprises the following steps;
s1, system construction, firstly constructing a remote alarm server, then establishing data connection between the intelligent communication gateway to be accessed into the system and the remote alarm server through a wireless communication network, then the site collecting monitoring terminal and the alarm terminal of each system to be accessed are connected with the intelligent communication gateway, finally the remote alarm server distributes independent communication addressing addresses for each intelligent communication gateway, site collecting monitoring terminal and alarm terminal respectively, and one alarm terminal and at least one site collecting monitoring terminal form a working group, then each on-site acquisition monitoring terminal is installed on the wall corresponding to the kitchen stove, and the human body sensor and the monitoring camera of the on-site acquisition monitoring terminal are intersected with the axis of the stove, and the intersection point is positioned at least 5 cm above the stove, so that the construction operation of the early warning system is completed;
s2, performing early warning operation, wherein when the step S1 is completed and the stove is operated, firstly, a gas sensor of the on-site acquisition monitoring terminal detects the gas concentration in the surrounding environment of the stove in use, and a human body sensor and a monitoring camera of the on-site acquisition monitoring terminal monitor, identify and monitor the operating personnel in front of the stove and identify and monitor the use state of the stove; then, performing operation analysis on the detected data by using a driving circuit, and feeding back the information of the operator to a remote alarm server by using a field acquisition monitoring terminal when the gas concentration around the cooker is in a safe state, the cooker is in a non-use state and the cooker has the operator to operate; when the gas concentration around the cooker rises to a critical value and the cooker is in any one of two states of use and no operation by an operator, the driving circuit simultaneously sends alarm information to the remote alarm server and the alarm terminal for early warning;
and S3, actively monitoring, wherein in the operation of the invention, a request can be sent to a remote alarm server through an alarm terminal, and then the current kitchen range operation state of the monitoring terminal is acquired on site to carry out synchronous monitoring.
In this embodiment, in the step S1, when a plurality of field collection monitoring terminals in the same working group are provided, the field collection monitoring terminals are connected in parallel, and when two or more alarm terminals in the same working group are provided, the intelligent terminals of the alarm terminals are connected through a wireless communication network.
In this embodiment, in the step S2, the alarm information includes the concentration of the leaked fuel gas around the current cooker, the operating status video information of the cooker, and the identity information of the operator of the cooker.
On one hand, the system has simple structure, simple and flexible operation and good data communication and system expansion capacity, thereby greatly improving the flexibility and the convenience of the operation of the early warning system and effectively reducing the difficulty and the cost of the construction and the maintenance operation of the early warning system; on the other hand, the early warning operation is flexible and convenient, the early warning information is comprehensive, and the requirement of synchronous monitoring operation on the operation state of the cooker can be met, so that the reliability and the accuracy of the early warning operation are greatly improved.
It will be appreciated by persons skilled in the art that the present invention is not limited by the embodiments described above. The foregoing embodiments and description have been presented only to illustrate the principles of the invention. Various changes and modifications can be made without departing from the spirit and scope of the invention. Such variations and modifications are intended to be within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a for kitchen use is hit fire and is synthesized monitoring early warning system from people which characterized in that: the kitchen-used dynamic fire and people leaving comprehensive monitoring and early warning system comprises a field acquisition monitoring terminal, an intelligent communication gateway, a wireless communication network, an alarm server and an alarm terminal, wherein at least one field acquisition monitoring terminal is connected with the intelligent communication gateway through the wireless communication network, the intelligent communication gateway is respectively connected with the alarm server and the alarm terminal through the wireless communication network, and the alarm server is connected with the alarm terminal through the wireless communication network.
2. The integrated monitoring and early warning system for the kitchen use, which is used for the fire leaving, according to claim 1, is characterized in that: the on-site collection monitoring terminal comprises a bearing base, a detection box, a bearing partition plate, a gas sensor, a human body sensor, a monitoring camera and a driving circuit, wherein the bearing base is of a closed cavity structure with a rectangular cross section, the rear end surface of the bearing base is provided with at least four positioning blocks uniformly distributed around the axis of the bearing base, the front end surface of the bearing base is hinged with the lower end surface of the detection box through a turntable mechanism, the detection box is of a closed cavity structure, a plurality of through holes are uniformly distributed on the side surface of the detection box, the bearing partition plate is embedded in the detection box and is coaxially distributed with the detection box, the detection box is divided into a human body detection chamber and a gas detection chamber from top to bottom, at least one gas sensor is embedded in the gas detection chamber of the detection box and is connected with the lower end surface of the bearing partition plate, and the human body sensor, The monitoring cameras are embedded in the upper end face of the detection box, the axes of the human body sensors and the monitoring cameras are distributed in parallel and form an included angle of 0-90 degrees with the horizontal plane, and the driving circuit is embedded in the bearing base and is electrically connected with the gas sensor, the human body sensors, the monitoring cameras and the turntable mechanism respectively.
3. The integrated monitoring and early warning system for the kitchen use, which is used for the fire leaving, according to claim 2, is characterized in that: the gas detection device is characterized in that the bearing partition plate is provided with positioning holes which are coaxially distributed with the bearing partition plate, the positioning holes are internally provided with drainage fans, the drainage fans are coaxially distributed with the positioning holes, the lower end face of each drainage fan exceeds the lower end face of the bearing partition plate by at least 3 mm, the human body detection chamber is communicated with the gas detection chamber through the positioning holes and the drainage fans, and the drainage fans are electrically connected with the driving circuit.
4. The integrated monitoring and early warning system for the kitchen use, which is used for the fire leaving, according to claim 2, is characterized in that: the turntable mechanism is vertically crossed with the bearing base through at least two guide sliding rails which are distributed in parallel on the front end face of the bearing base.
5. The integrated monitoring and early warning system for the kitchen use, which is used for the fire leaving, according to claim 2, is characterized in that: the drive circuit is a circuit system based on any one of a DSP chip and an FPGA chip, and is additionally provided with at least one power supply wiring terminal and a wireless communication circuit, wherein the power supply wiring terminal is embedded in the lower end face of the bearing base.
6. The integrated monitoring and early warning system for the kitchen use, which is used for the fire leaving, according to claim 1, is characterized in that: the alarm terminal comprises an intelligent terminal and an acousto-optic integrated buzzer, wherein the intelligent terminal is electrically connected with the acousto-optic integrated buzzer, and the intelligent terminal is any one or more of a PC (personal computer), an industrial computer and a mobile intelligent communication terminal.
7. An early warning method of the kitchen-used fire-away comprehensive monitoring and early warning system according to any one of claims 1 to 6, characterized in that: which comprises the following steps;
s1, system construction, firstly constructing a remote alarm server, then establishing data connection between the intelligent communication gateway to be accessed into the system and the remote alarm server through a wireless communication network, then the site collecting monitoring terminal and the alarm terminal of each system to be accessed are connected with the intelligent communication gateway, finally the remote alarm server distributes independent communication addressing addresses for each intelligent communication gateway, site collecting monitoring terminal and alarm terminal respectively, and one alarm terminal and at least one site collecting monitoring terminal form a working group, then each on-site acquisition monitoring terminal is installed on the wall corresponding to the kitchen stove, and the human body sensor and the monitoring camera of the on-site acquisition monitoring terminal are intersected with the axis of the stove, and the intersection point is positioned at least 5 cm above the stove, so that the construction operation of the early warning system is completed;
s2, performing early warning operation, wherein when the step S1 is completed and the stove is operated, firstly, a gas sensor of the on-site acquisition monitoring terminal detects the gas concentration in the surrounding environment of the stove in use, and a human body sensor and a monitoring camera of the on-site acquisition monitoring terminal monitor, identify and monitor the operating personnel in front of the stove and identify and monitor the use state of the stove; then, performing operation analysis on the detected data by using a driving circuit, and feeding back the information of the operator to a remote alarm server by using a field acquisition monitoring terminal when the gas concentration around the cooker is in a safe state, the cooker is in a non-use state and the cooker has the operator to operate; when the gas concentration around the cooker rises to a critical value and the cooker is in any one of two states of use and no operation by an operator, the driving circuit simultaneously sends alarm information to the remote alarm server and the alarm terminal for early warning;
and S3, actively monitoring, wherein in the operation of the invention, a request can be sent to a remote alarm server through an alarm terminal, and then the current kitchen range operation state of the monitoring terminal is acquired on site to carry out synchronous monitoring.
8. The use method of the kitchen-used fire-away comprehensive monitoring and early warning system according to claim 7 is characterized in that: in the step S1, when a plurality of field collection monitoring terminals are provided in the same working group, the field collection monitoring terminals are connected in parallel, and when two or more alarm terminals are provided in the same working group, the intelligent terminals of the alarm terminals are connected via a wireless communication network.
9. The use method of the kitchen-used fire-away comprehensive monitoring and early warning system according to claim 7 is characterized in that: in the step S2, the alarm information includes the concentration of the leaked gas around the current cooker, the operating status video information of the cooker, and the identity information of the operator of the cooker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011166224.1A CN112396811A (en) | 2020-10-27 | 2020-10-27 | Fire-away comprehensive monitoring and early warning system and method for kitchen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011166224.1A CN112396811A (en) | 2020-10-27 | 2020-10-27 | Fire-away comprehensive monitoring and early warning system and method for kitchen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112396811A true CN112396811A (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011166224.1A Withdrawn CN112396811A (en) | 2020-10-27 | 2020-10-27 | Fire-away comprehensive monitoring and early warning system and method for kitchen |
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| CN (1) | CN112396811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114140990A (en) * | 2021-11-17 | 2022-03-04 | 大连万达集团股份有限公司 | Fire-away alarm system for catering kitchen |
-
2020
- 2020-10-27 CN CN202011166224.1A patent/CN112396811A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114140990A (en) * | 2021-11-17 | 2022-03-04 | 大连万达集团股份有限公司 | Fire-away alarm system for catering kitchen |
| CN114140990B (en) * | 2021-11-17 | 2023-07-14 | 北京惠达万安智慧城市科技有限公司 | Kitchen fire-moving and person-leaving alarm system after catering |
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Application publication date: 20210223 |