CN112902236A - Internet of things gas cooker and leakage prevention method - Google Patents
Internet of things gas cooker and leakage prevention method Download PDFInfo
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- CN112902236A CN112902236A CN202011513371.1A CN202011513371A CN112902236A CN 112902236 A CN112902236 A CN 112902236A CN 202011513371 A CN202011513371 A CN 202011513371A CN 112902236 A CN112902236 A CN 112902236A
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- 238000000034 method Methods 0.000 title claims abstract description 7
- 230000002265 prevention Effects 0.000 title claims abstract description 5
- 238000004891 communication Methods 0.000 claims abstract description 34
- 238000002485 combustion reaction Methods 0.000 claims description 21
- 238000010411 cooking Methods 0.000 claims description 12
- 230000006855 networking Effects 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 5
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 91
- 230000000007 visual effect Effects 0.000 description 3
- 235000013305 food Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- Engineering & Computer Science (AREA)
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Abstract
The invention provides an Internet of things gas cooker and a leakage prevention method, wherein the Internet of things gas cooker comprises a cooker body, the cooker body comprises at least one cooker tray, and the Internet of things gas cooker further comprises: each furnace plate is provided with at least one temperature sensor; the flow sensor is arranged on the gas branch pipeline corresponding to each furnace plate; and the Internet of things communication module is in signal connection with the temperature sensor and the flow sensor. The invention has the advantages that whether the gas corresponding to each stove plate flows and the temperature of the stove plate are detected in real time at the same time, whether the stove plate leaks or not can be judged, so that the gas leakage can be responded in time, such as alarming, gas source closing, related personnel informing and the like, and even the ignition or closing of the stove can be remotely controlled by using a mobile phone APP. The problem of prior art scheme imperfection or complicacy is solved.
Description
Technical Field
The invention relates to the technical field of gas monitoring, in particular to an Internet of things gas cooker and a leakage prevention method.
Background
Gas is a resource widely used in industry, business and families, but in gas delivery or gas use, the condition of gas leakage can occur, if the gas leakage is not monitored in time and the alarm reminding is carried out on related personnel, the problems of personal and property safety hazards can be caused. Therefore, how to timely and effectively monitor and alarm the gas leakage becomes a technical problem to be solved urgently.
Disclosure of Invention
In order to solve the technical problem, the invention discloses an internet of things gas cooker, which comprises a cooker body, wherein the cooker body comprises at least one cooker tray, and the internet of things gas cooker also comprises:
the temperature sensor is used for detecting the temperature of the furnace plates, and at least one temperature sensor can be arranged on each furnace plate according to the requirement;
the flow sensor is arranged on the gas branch pipeline corresponding to each furnace plate;
and the Internet of things communication module is in signal connection with the temperature sensor and the flow sensor.
The invention has the advantages that whether the gas corresponding to each stove plate flows and the temperature of the stove plate are detected in real time at the same time, whether the stove plate leaks or not can be judged, so that the gas leakage can be responded in time, such as alarming, gas source closing, related personnel informing and the like, and even the ignition or closing of the stove can be remotely controlled by using a mobile phone APP. The problem of prior art scheme imperfection or complicacy is solved.
Further, still including being provided with a gas ignition switch on the gas branch pipeline corresponding to every stove dish, every gas ignition switch all with thing networking communication module signal connection.
Further, the internet of things communication module is provided with a communication module which is NB-IoT or LoRa.
Furthermore, an electronic valve is arranged on the main air inlet pipeline and is in signal connection with the Internet of things communication module.
Furthermore, the internet of things communication module is provided with a state judgment module, and the state judgment module receives signals from the temperature sensor and the flow sensor respectively and judges the state of the corresponding furnace plate according to the signals of the temperature sensor and the flow sensor corresponding to the same furnace plate.
Furthermore, when only one furnace plate is provided, the state of the furnace plate is normal when the signals of the flow sensor and the temperature sensor are both 1 or 0, and the state of the furnace plate is leakage when the signals of the flow sensor and the temperature sensor are different.
Further, when two furnace plates are arranged, the flow sensor A and the temperature sensor A, and the flow sensor B and the temperature sensor B respectively correspond to the two furnace plates;
the signals of the flow sensor A and the temperature sensor A are the same, and the signals of the flow sensor B and the temperature sensor B are the same, so that the state of the furnace plate is normal;
when one or both of the conditions that the signals of the flow sensor A and the temperature sensor A are different and the signals of the flow sensor B and the temperature sensor B are different occur, the state of the furnace plate is leakage.
Further, temperature sensor is a wide-angle lens to set up in the axis at thing networking gas cooking utensils and thing networking gas cooking utensils border intersection, the image of all stove plates is gathered simultaneously to the wide-angle lens, this wide-angle lens and thing networking communication module signal connection.
Further, be provided with the figure analysis module among the thing networking communication module, through the image that obtains wide-angle lens conveying and come, according to the contrast of the reference image of contrast gas combustion state and no gas combustion state, perhaps judge whether be in the gas combustion state according to the definition of stove plate central structure part.
The invention also provides an anti-leakage method of the Internet of things gas cooker, which is used for controlling the Internet of things gas cooker and comprises the following steps:
s1, extracting signals of a temperature sensor and a flow sensor corresponding to each furnace plate;
and S2, judging that the gas cooker has gas leakage when the signals of the temperature sensor and the flow sensor corresponding to a certain stove plate are different.
Meanwhile, whether the gas corresponding to each stove plate flows and the temperature of the stove plate are detected in real time, whether the stove plate leaks or not can be judged, and therefore the gas leakage can be responded timely, such as alarming, gas source closing, related personnel notification and the like, and even the ignition or closing of the stove can be remotely controlled by using a mobile phone APP (application), for example. The problem of prior art scheme imperfection or complicacy is solved.
Drawings
Fig. 1 is a block diagram showing the construction of a gas leakage alarm system of the present invention.
Detailed Description
The technical solution of the present invention will be further described with reference to the following specific examples, but the present invention is not limited to these examples.
As shown in fig. 1, an internet of things gas cooker comprises a cooker body 1, wherein the cooker body 1 comprises at least one stove plate (fig. 1 shows two stove plates, namely, stove plate 2 and stove plate 3), and further comprises:
in the example of fig. 1, the temperature sensor 21 and the temperature sensor 31 are respectively and correspondingly installed at the positions of the furnace plates 2 and 3, and respectively detect the corresponding furnace plate temperatures for judging whether the furnace plates are in a gas combustion state or not;
the flow sensor is arranged on the gas branch pipeline corresponding to each furnace plate; in the example of fig. 1, the flow sensor 23 and the flow sensor 33 are respectively installed on a gas branch pipe connecting the oven tray 2 and the oven tray 3, and are used for detecting whether the gas flow exists in the corresponding oven tray pipe.
And the internet of things communication module 4 is in signal connection with the temperature sensors 21 and 31 and the flow sensors 23 and 33.
Whether the Internet of things cooker works normally or gas leaks is judged as follows:
wherein, the signal of the flow sensor is 1, which represents that the corresponding pipeline has gas flow, and the signal of the flow sensor is 0, which represents that the gas flow is zero; the signal of the temperature sensor is 1, which represents that the corresponding furnace plate is in a gas combustion state, and the signal is 0, which represents that the gas of the corresponding furnace plate is not combusted.
The invention has the advantages that whether the gas corresponding to each stove plate flows and the temperature of the stove plate are detected in real time at the same time, whether the stove plate leaks or not can be judged, so that the gas leakage can be responded in time, such as alarming, gas source closing, related personnel informing and the like, and even the ignition or closing of the stove can be remotely controlled by using a mobile phone APP. The problem of prior art scheme imperfection or complicacy is solved.
In the example of fig. 1, the gas stove further comprises a gas ignition switch arranged on a gas branch pipeline corresponding to each stove plate, the gas ignition switch is different from a traditional mechanical switch which is manually opened and closed, and is compatible with two working modes of manual opening and closing and electric control opening and closing, and each gas ignition switch is in signal connection with the internet of things communication module 4. The gas ignition switch 22 and the gas ignition switch 32 in the example of fig. 1 correspond to the hob 2 and the hob 3, respectively. When a certain stove plate leaks, the Internet of things communication module 4 sends an instruction to a gas ignition switch corresponding to the stove plate, the switch is closed by electric control, a gas source is cut off, and danger is avoided. Of course, an electronic valve can be further installed on the main gas inlet pipeline 5, the electronic valve is also in signal connection with the internet of things communication module, and when leakage occurs, the internet of things communication module 4 can immediately control the electronic valve to cut off a gas source.
In some embodiments, the internet of things communication module is provided with a communication module, and the communication module is NB-IoT or LoRa. The wireless communication mode can also adopt other modes such as WiFi and Bluetooth, and certainly, the signal connection can also be carried out by adopting an entity data line.
In practical application, the internet of things communication module is provided with a state judgment module, and the state judgment module receives signals from the temperature sensor and the flow sensor respectively and judges the state of the corresponding furnace plate according to the signals of the temperature sensor and the flow sensor corresponding to the same furnace plate.
For example, when there is only one hob and the signals of the flow sensor and the temperature sensor are both 1 or 0, the state of the hob is normal, and when the signals of the flow sensor and the temperature sensor are different, the state of the hob is leakage.
When two furnace plates are arranged, the flow sensor A and the temperature sensor A, and the flow sensor B and the temperature sensor B respectively correspond to the two furnace plates; the judgment criterion is as follows:
the signals of the flow sensor A and the temperature sensor A are the same, and the signals of the flow sensor B and the temperature sensor B are the same, so that the state of the furnace plate is normal;
when one or both of the conditions that the signals of the flow sensor A and the temperature sensor A are different and the signals of the flow sensor B and the temperature sensor B are different occur, the state of the furnace plate is leakage.
In the example of fig. 1, the mobile terminal device 6 (e.g., IPad or smart phone) may be in signal communication connection with the communication module of the internet of things remotely, so as to check the state of the cooker at any time, further remotely close the gas source, and even remotely command a certain stove to ignite. In some embodiments, the opening and closing degree of a valve of the gas ignition switch can be remotely controlled, the gas flow is controlled, the firepower is remotely adjusted, and the food cooking is remotely controlled. Therefore, as long as the food is processed in advance, put into a cooking container and put on the cooker, the cooking, such as soup making, rice cooking and the like, can be controlled remotely, and the firepower can be adjusted according to the time schedule, the gas is turned off, and the cooking is finished. Provides more convenient life style for people working at a fast pace.
The temperature sensor detects the temperature of the corresponding furnace plate, the temperature detected by the temperature sensor is a critical point when the temperature is the minimum firepower, a fault tolerance range is set, for example, the temperature is five degrees lower than the critical point (the temperature can be set by experimental data, different cooking utensils and the temperature sensor are different in installation position, and the temperature setting value is different) is used as a standard temperature for judging whether the temperature is in a gas combustion state, if the temperature is higher than the critical point, the gas combustion state is judged, and if the temperature is lower than the critical point, the gas is judged to be in a gas extinguishing or unburnt state.
In a particular embodiment, the flow sensor may be an ultrasonic flow sensor.
In some embodiments, a wide-angle lens is arranged on the central axis of the stove (the two stove plates are respectively positioned on two sides of the central axis) and the edge of the stove, so that the image of each stove plate can be observed simultaneously, the wide-angle lens is in signal connection with the internet of things communication module, the state of the stove can be checked in real time through intelligent terminals such as a mobile phone, and the visual judgment of the image is utilized. The instructions of ignition, firepower adjustment, air source closing and the like can be determined by directly observing the image.
In some embodiments, be provided with the figure analysis module in thing networking communication module, through acquireing the image that wide-angle lens conveying was come, according to the contrast of the reference image of contrast gas combustion state and no gas combustion state, perhaps judge whether be in the gas combustion state according to the definition of stove dish central structure part, at this moment, can save temperature sensor, adopt the image of wide-angle lens collection to carry out the judgement that whether the gas ignites, combine above-mentioned flow sensor to make corresponding judgement and send corresponding instruction.
In some embodiments, an infrared camera can be used separately or simultaneously to collect images, whether the furnace is in a gas combustion state or not is judged according to the color temperature of the central area of the furnace plate, and meanwhile, a master can remotely watch the images.
In some embodiments, a hemispherical transparent cover is covered on the wide-angle lens to prevent the lens from being polluted and facilitate cleaning. The lower edge of the transparent cover is in an inverted T shape, a planar circular ring is formed at the bottom of the transparent cover, at least one annular groove is formed in the bottom of the circular ring, and a sealing ring can be embedded in the groove and used for sealing the wide-angle lens to avoid being polluted by liquid or oil smoke gas. The ring bottom surface contacts with the upper surface of the panel of the cooker, the upper surface of the cooker can be provided with a plurality of T-shaped or inverted L-shaped bulges, and the ring bottom surface is provided with a groove matched with the ring bottom surface, so that the transparent cover is fixed on the surface of the cooker through embedding the bulges and rotating, and can be conveniently detached when the transparent cover needs to be cleaned or replaced. The addition of the lens is equivalent to providing eyes for a stove without life, and lays a foundation for further intelligent upgrading. Visual basis is provided for remote monitoring and operation, and misjudgment caused by original fault is avoided.
The invention also provides an anti-leakage method of the Internet of things gas cooker, which is used for controlling the Internet of things gas cooker and comprises the following steps:
s1, extracting signals of a temperature sensor and a flow sensor corresponding to each furnace plate;
and S2, judging that the gas cooker has gas leakage when the signals of the temperature sensor and the flow sensor corresponding to a certain stove plate are different.
The same signals of the temperature sensor and the flow sensor mean that the signals are both 1 (high level) or 0 (low level), wherein 1 represents that gas is burnt and gas flow is generated, and 0 represents that gas is not burnt and gas flow is zero.
Whether the Internet of things cooker works normally or gas leaks is judged as follows:
when a certain flow sensor signal is 0 and the corresponding temperature sensor signal is 1, the possibility of damage of the flow sensor is high, and the flow sensor is judged to be in fault and alarm is given. For timely inspection and maintenance.
Meanwhile, whether the gas corresponding to each stove plate flows and the temperature of the stove plate are detected in real time, whether the stove plate leaks or not can be judged, and therefore the gas leakage can be responded timely, such as alarming, gas source closing, related personnel notification and the like, and even the ignition or closing of the stove can be remotely controlled by using a mobile phone APP (application), for example. The problem of prior art scheme imperfection or complicacy is solved.
The temperature sensor detects the temperature at the corresponding furnace plate, the temperature detected by the temperature sensor is a critical point when the temperature is the minimum firepower, and a fault tolerance range is set, for example, the temperature is five degrees lower than the critical point (which can be set according to experimental data, different cooking utensils and temperature sensors are different in installation positions, and the temperature setting value is also different) to be used as a standard temperature for judging whether the temperature is in a gas combustion state, the temperature is judged to be in the gas combustion state when the temperature is higher than the critical point, and the temperature is judged to be in a gas extinguishing or unburnt state when the temperature is lower than the critical point.
In a particular embodiment, the flow sensor may be an ultrasonic flow sensor.
In some embodiments, a wide-angle lens is arranged on the central axis of the stove (the two stove plates are respectively positioned on two sides of the central axis) and the edge of the stove, so that the image of each stove plate can be observed simultaneously, the wide-angle lens is in signal connection with the internet of things communication module, the state of the stove can be checked in real time through intelligent terminals such as a mobile phone, and the visual judgment of the image is utilized. The instructions of ignition, firepower adjustment, air source closing and the like can be determined by directly observing the image.
In some embodiments, a graphic analysis module is disposed in the internet of things communication module, and the graphic analysis module may store a still image of the furnace plate when the gas is not ignited in advance, or store a picture of the furnace plate when the gas is ignited (or store several pictures with different firepowers) at the same time, and use the picture as a standard image, and then determine whether the furnace plate is in the gas combustion state by obtaining an image transmitted from a wide-angle lens and comparing the standard image of the gas combustion state with the standard image of the non-gas combustion state. Or whether the furnace plate is in a gas combustion state or not is judged according to the definition of the central structural part of the furnace plate. At the moment, a temperature sensor can be omitted, or a wide-angle lens and an image analysis module thereof are used as the temperature sensor, the judgment of whether the fuel gas is ignited or not is carried out by adopting an image collected by the wide-angle lens, and the judgment is carried out correspondingly by combining the flow sensor and a corresponding instruction is sent out.
In some embodiments, an infrared camera can be used separately or simultaneously to collect images, whether the furnace is in a gas combustion state or not is judged according to the color temperature of the central area of the furnace plate, and meanwhile, a master can remotely watch the images.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. The utility model provides a thing networking gas cooking utensils, includes the cooking utensils body, the cooking utensils body includes at least one stove plate, its characterized in that still includes:
the temperature sensor is used for detecting the temperature of the furnace plate;
the flow sensor is arranged on the gas branch pipeline corresponding to each furnace plate;
and the Internet of things communication module is in signal connection with the temperature sensor and the flow sensor.
2. The Internet of things gas cooker as claimed in claim 1, further comprising a gas ignition switch provided on a gas branch line corresponding to each stove pan, each gas ignition switch being in signal connection with the Internet of things communication module.
3. The Internet of things gas cooker as claimed in claim 2, wherein the Internet of things communication module is provided with a communication module, and the communication module is NB-IoT or LoRa.
4. The Internet of things gas cooker as claimed in claim 1, 2 or 3, wherein an electronic valve is arranged on the main gas inlet pipeline, and the electronic valve is in signal connection with the Internet of things communication module.
5. The Internet of things gas cooker as claimed in claim 1, 2 or 3, wherein the Internet of things communication module is provided with a state determination module, and the state determination module receives signals from the temperature sensor and the flow sensor respectively and determines the state of the corresponding hob according to the signals of the temperature sensor and the flow sensor corresponding to the same hob.
6. The Internet of things gas cooker as claimed in claim 5, wherein when there is only one hob, the state of the hob is normal when the signals of the flow sensor and the temperature sensor are both 1 or 0, and when the signals of the flow sensor and the temperature sensor are different, the state of the hob is leakage.
7. The Internet of things gas cooker as claimed in claim 5, wherein when two cookers are provided, the flow sensor A and the temperature sensor A, and the flow sensor B and the temperature sensor B correspond to the two cookers, respectively;
the signals of the flow sensor A and the temperature sensor A are the same, and the signals of the flow sensor B and the temperature sensor B are the same, so that the state of the furnace plate is normal;
when one or both of the conditions that the signals of the flow sensor A and the temperature sensor A are different and the signals of the flow sensor B and the temperature sensor B are different occur, the state of the furnace plate is leakage.
8. The Internet of things gas cooker as claimed in claim 5, wherein the temperature sensor is a wide-angle lens and is arranged at the intersection of the central axis of the Internet of things gas cooker and the edge of the Internet of things gas cooker, the wide-angle lens collects images of all the cooker plates simultaneously, and the wide-angle lens is in signal connection with the Internet of things communication module.
9. The Internet of things gas cooker as claimed in claim 8, wherein the Internet of things communication module is provided with a graphic analysis module, and whether the gas cooker is in the gas combustion state or not is judged according to the comparison of reference images for comparing the gas combustion state with the non-gas combustion state or according to the definition of a central structural component of the cooker plate by acquiring images transmitted by the wide-angle lens.
10. A leakage prevention method for an internet of things gas cooker, for controlling the internet of things gas cooker of claims 1-9, comprising the steps of:
s1, extracting signals of a temperature sensor and a flow sensor corresponding to each furnace plate;
and S2, judging that the gas cooker has gas leakage when the signals of the temperature sensor and the flow sensor corresponding to a certain stove plate are different.
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CN202011513371.1A CN112902236A (en) | 2020-12-18 | 2020-12-18 | Internet of things gas cooker and leakage prevention method |
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CN202011513371.1A CN112902236A (en) | 2020-12-18 | 2020-12-18 | Internet of things gas cooker and leakage prevention method |
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Cited By (1)
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CN114251605A (en) * | 2021-12-29 | 2022-03-29 | 东本电气科技(苏州)有限公司 | Leakage detection method and emergency device for gas underground pipe network |
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