CN111476978A - Intelligent dry-burning prevention system and method for kitchen gas cooker - Google Patents
Intelligent dry-burning prevention system and method for kitchen gas cooker Download PDFInfo
- Publication number
- CN111476978A CN111476978A CN202010245876.8A CN202010245876A CN111476978A CN 111476978 A CN111476978 A CN 111476978A CN 202010245876 A CN202010245876 A CN 202010245876A CN 111476978 A CN111476978 A CN 111476978A
- Authority
- CN
- China
- Prior art keywords
- gas
- alarm
- kitchen
- personnel
- monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000002265 prevention Effects 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 63
- 238000010411 cooking Methods 0.000 claims abstract description 51
- 238000001514 detection method Methods 0.000 claims abstract description 45
- 230000006698 induction Effects 0.000 claims abstract description 44
- 230000008569 process Effects 0.000 claims abstract description 25
- 230000000007 visual effect Effects 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000012806 monitoring device Methods 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 3
- 238000009841 combustion method Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 238000007689 inspection Methods 0.000 abstract description 6
- 230000001960 triggered effect Effects 0.000 description 6
- 230000006399 behavior Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 206010000369 Accident Diseases 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention provides an intelligent dry-burning prevention system and method for a kitchen gas cooker. The device comprises a first monitoring module, a second monitoring module, a time delay alarm module and a time delay processing module: the first monitoring module is used for monitoring first sensing information of outgoing personnel in the cooking process through infrared monitoring equipment and sending the first sensing information to host equipment; the time delay alarm module: the main machine equipment is used for judging whether a dry burning risk exists or not according to preset delay alarm time after receiving first induction information, and sending a first alarm signal when the dry burning risk exists; the invention has the beneficial effects that: the intelligent alarm system can realize automatic monitoring prompt and control, is simple to operate, automatically completes gas valve switch detection, personnel detection, gas leakage monitoring and alarm prompt, control functions and the like, timely reminds personnel to return to a kitchen for inspection or close a gas valve, effectively prevents accidents from occurring and avoids serious loss.
Description
Technical Field
The invention relates to the technical field of kitchen stove alarming, in particular to an intelligent dry-burning prevention system and method for a kitchen gas stove.
Background
At present, an intelligent alarm system for preventing dry combustion of a kitchen gas cooker (an intelligent alarm system for short) can be widely applied to safety alarm of kitchens such as families, schools, factories, canteens, restaurants, dining rooms and the like where gas and cookers are used. However, in the prior art, most of the dry-heating prevention devices and devices judge whether a dry-heating event occurs in a cooking pot through images, the dry-heating prevention judgment has a certain dry-heating phenomenon, only an alarm effect can be achieved, and an early warning effect cannot be achieved, and most of the dry-heating prevention devices and systems cannot detect gas leakage, so that the existing dry-heating prevention devices and systems have huge defects.
Disclosure of Invention
The invention provides an intelligent dry-burning prevention system and method for a kitchen gas cooker, which are used for solving the problems that in the prior art, dry-burning prevention equipment and system cannot give an early warning condition and cannot detect gas leakage.
The utility model provides a dry combustion method system is prevented to kitchen gas cooking utensils intelligence which characterized in that includes:
a first monitoring module: the system comprises an infrared monitoring device, a host device and a control device, wherein the infrared monitoring device is used for monitoring first induction information of outgoing personnel in the cooking process and sending the first induction information to the host device;
the time delay alarm module: the main machine equipment is used for judging whether a dry burning risk exists or not according to preset delay alarm time after receiving first induction information, and sending a first alarm signal when the dry burning risk exists;
a second monitoring module: the infrared monitoring equipment is used for monitoring second induction information of personnel entering in the cooking process through the infrared monitoring equipment after the first alarm signal is sent out, and sending the second induction information to the host equipment;
the time delay processing module: and after the host equipment receives the second sensing information, judging whether a person handles the dry burning risk according to preset delay control time, and controlling to close the external gas valve when no person handles the dry burning risk.
As an embodiment of the present invention: the system further includes a gas detection module, wherein the gas detection module includes:
gas state detection unit: the device is used for acquiring the opening and closing states of a gas valve of kitchen gas cooker equipment through an electric linkage switch;
gas leakage detection unit: the gas valve is used for judging whether the kitchen gas cooker is in a cooking state or a non-cooking state according to the host equipment when the gas valve is in an opening state;
a gas control unit: and the main gas valve is used for judging that the gas of the kitchen gas cooker leaks when the kitchen gas cooker is in a non-cooking state, and controlling the main gas valve in front of the gas meter to be turned off through a preset first forced control switch.
As an embodiment of the present invention: the system further includes an alarm module, the alarm module comprising:
a first alarm unit: the time delay alarm module is used for sending a first acousto-optic alarm signal according to preset acousto-optic alarm equipment when judging that the dry burning risk exists;
a second alarm unit: the time delay processing module is used for sending a second acousto-optic alarm signal and a first voice alarm signal when the time delay processing module judges that no person is handling the dry burning risk after sending the first acousto-optic alarm signal, and controlling a second forced control switch to switch off a gas valve before a gas hose pipeline by controlling the host equipment;
a third alarm unit: and the controller is used for sending a third sound and light alarm signal and a second voice alarm signal when the gas control unit judges that the gas leaks after sending the second sound and light alarm signal and the first voice alarm signal.
As an embodiment of the present invention: the infrared detection device comprises a pyroelectric infrared control integrated circuit and a pyroelectric infrared sensor; wherein,
the pyroelectric infrared sensor is used for sensing information of personnel in a cooking process, and the sensing information comprises the existence of the personnel and behavior information of the personnel;
the pyroelectric infrared control integrated circuit is used for converting the existence of the personnel and the behavior information of the personnel into electric signals and transmitting the electric signals to the host equipment.
As an embodiment of the present invention: the pyroelectric infrared control integrated circuit comprises: the MCU control chip, the decoder, the amplifier, the first resistor, the first capacitor and the comparator; wherein,
the output end of the pyroelectric infrared sensor is electrically connected with the input end of the MCU control chip, the output end of the MCU control chip is connected with the decoder, the output end of the decoder is electrically connected with the positive input end of the amplifier, and the negative input end of the amplifier is connected with an external power supply through the first resistor; the output end of the amplifier is electrically connected with the positive input end of the comparator, and the negative input end of the comparator is electrically connected with external reference voltage; the output end of the comparator is electrically connected with the host equipment, and the output end of the comparator is also connected with the negative input end of the amplifier through a first capacitor; wherein,
the pyroelectric infrared sensor transmits the detected information of whether personnel exist to the MCU control chip; the MCU control chip sends out a control signal, the control signal is converted into an analog electric signal through the decoder, the analog electric signal is subjected to noise reduction through the amplifier, the analog electric signal subjected to noise reduction is subjected to pulse signal output through the comparator, and the pulse signal is led into host equipment.
An intelligent alarm method for a kitchen gas cooker is characterized by comprising the following steps:
monitoring first induction information of outgoing personnel in a cooking process through infrared monitoring equipment, and sending the first induction information to host equipment;
after the host equipment receives the first sensing information, judging whether a dry burning risk exists or not according to preset delay alarm time, and sending a first alarm signal when the dry burning risk exists;
after the first alarm signal is sent out, monitoring second induction information of personnel entering in the cooking process through the infrared monitoring equipment, and sending the second induction information to the host equipment;
after the host equipment receives the second sensing information, whether a person handles the dry combustion risk is judged according to preset delay control time, and when no person handles the dry combustion risk, the external gas valve is controlled to be closed.
As an embodiment of the present invention: the method further comprises the following steps:
collecting the opening and closing states of a gas valve of kitchen gas cooker equipment through a preset electric linkage switch;
when the gas valve is in an open state, judging that the kitchen gas cooker is in a cooking state or a non-cooking state according to the host equipment;
when the kitchen gas cooker is in a non-cooking state, judging that gas of the kitchen gas cooker leaks, and controlling a gas main valve in front of a gas meter to be turned off through a preset first forced control switch.
As an embodiment of the present invention: the method further comprises the following steps:
when the risk of dry burning exists, a first acousto-optic alarm signal is sent out according to preset acousto-optic alarm equipment;
after the first acousto-optic alarm signal is sent out, when no person handles the risk of dry burning, a second acousto-optic alarm signal and a first voice alarm signal are sent out, and the main machine equipment is controlled to control a second forced control switch to switch off a gas valve before a gas hose pipeline is switched off;
and after the second audible and visual alarm signal and the first audible and visual alarm signal are sent out, a third audible and visual alarm signal is sent out and a second audible and visual alarm signal is sent out when the gas of the kitchen gas cooker is leaked.
As an embodiment of the present invention: first induction information that the personnel go out through infrared monitoring facilities monitoring culinary art process to with first induction information sends host computer equipment, including following step:
the method comprises the steps that the existence information and the personnel outgoing information of personnel in the cooking process are induced through a pyroelectric infrared sensor, and the existence information and the personnel outgoing information of the personnel are used as first induction information;
and the first induction information is led into host equipment in the form of an electric signal through a pyroelectric infrared control integrated circuit preset on the periphery of the pyroelectric infrared sensor.
The invention has the beneficial effects that: the key characteristic is that the gas valve, the user and the intelligent alarm system are automatically associated with each other: and when the valve is normally closed, the electric switch is linked to be disconnected to stop monitoring. When the gas is used, the gas valve is opened, and the intelligent alarm system starts to check whether the personnel are in the kitchen. When someone is in the kitchen, the intelligent alarm system keeps silent. When no person is in the kitchen, the alarm is prompted after the default delay time, and the alarm is automatically stopped when the person returns to the kitchen again; the accidental danger caused by the fact that people leave the kitchen for too long time due to other things in the process of cooking when fire is fired is prevented. The problems that a kitchen stove is forgotten to be fired and burnt due to the facts that a user calls, waits for a guest to chat, watches TV and a mobile phone and the like are avoided, and the problems that old people are easy to forget, the old people can burn dishes slightly and burn out a pot, and the old people can dry and burn the pot to cause fire accidents are prevented. The intelligent alarm system can realize automatic monitoring prompt and control, is simple to operate, automatically completes gas valve switch detection, personnel detection, gas leakage monitoring and alarm prompt, control functions and the like, timely reminds personnel to return to a kitchen for inspection or close a gas valve, effectively prevents accidents from occurring and avoids serious loss.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a system structure diagram of an intelligent dry combustion preventing system of a kitchen gas cooker in an embodiment of the invention
FIG. 2 is a hardware composition of an intelligent dry combustion preventing system of a kitchen gas cooker in an embodiment of the invention;
FIG. 3 is a pyroelectric infrared control integrated circuit of an intelligent dry combustion preventing system of a kitchen gas cooker in an embodiment of the invention;
fig. 4 is a flow chart of a method of the intelligent dry-burning prevention system for the kitchen gas cooker in the embodiment of the invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
An intelligent dry-heating prevention system for a kitchen gas cooker, as shown in figure 1, comprises:
a first monitoring module: the system comprises an infrared monitoring device, a host device and a control device, wherein the infrared monitoring device is used for monitoring first induction information of outgoing personnel in the cooking process and sending the first induction information to the host device;
the time delay alarm module: the main machine equipment is used for judging whether a dry burning risk exists or not according to preset delay alarm time after receiving first induction information, and sending a first alarm signal when the dry burning risk exists;
a second monitoring module: the infrared monitoring equipment is used for monitoring second induction information of personnel entering in the cooking process through the infrared monitoring equipment after the first alarm signal is sent out, and sending the second induction information to the host equipment;
the time delay processing module: and after the host equipment receives the second sensing information, judging whether a person handles the dry burning risk according to preset delay control time, and controlling to close the external gas valve when no person handles the dry burning risk.
As shown in the attached figure 2, the hardware equipment of the invention comprises a pyroelectric infrared control integrated circuit, a pyroelectric infrared sensor, an MCU control chip, a delay trigger, an audible and visual alarm and a voice alarm, and further comprises a gas main valve, a gas valve and an electric linkage switch on an external gas pipeline.
The principle of the invention is as follows: the invention adopts infrared monitoring equipment consisting of a pyroelectric infrared control integrated circuit and a pyroelectric infrared sensor, and human body induction automatic acquisition signals consisting of the infrared monitoring equipment are used for acquiring first induction information of a human body. In the invention, the circuit is in a standby state at ordinary times, and when the gas valve is opened, the linked switch is switched on to enter a detection working state. When a person moves in front of the kitchen pyroelectric infrared sensor, a detection signal is decoded, amplified and output-controlled by a chip to trigger a next-stage delay alarm module, the delay alarm module works, the delay alarm module starts countdown according to preset time after receiving a trigger signal, and the timer is automatically cleared and restarted if receiving the trigger signal again in a timing period; if no new trigger signal is received in the timing period, the preset time is over, the alarm signal is controlled to be output, and the alarm circuit is not triggered in the timing period. When the person is in the kitchen activity all the time, the detection signal will be continuously input into the decoding chip to control the output, the time delay control circuit is triggered to automatically clear the time, the system is in the silent state, and no warning sound can be given out. When the personnel leave the kitchen temporarily, the detection signal disappears, the delay alarm module cannot obtain the trigger signal, the timing cannot be automatically reset, and after the preset default time (the delay time can be automatically adjusted), the alarm circuit is triggered immediately to remind the personnel to return to the kitchen for checking, preferably within 2 minutes.
The second detection module detects the alarm and then continuously detects the alarm within a preset time, the time is preferably 5 minutes, if no person enters a kitchen to check or remove the alarm, the time delay processing module starts a command of closing the gas valve, forcibly closes the valve, and simultaneously closes the electric switch in a linkage manner to wait for the next time to be opened again.
The invention has the beneficial effects that: the key characteristic is that the gas valve, the user and the intelligent alarm system are automatically associated with each other: and when the valve is normally closed, the electric switch is linked to be disconnected to stop monitoring. When the gas is used, the gas valve is opened, and the intelligent alarm system starts to check whether the personnel are in the kitchen. When someone is in the kitchen, the intelligent alarm system keeps silent. When no person is in the kitchen, the alarm is prompted after the default delay time (the invention is preferably 2 minutes, and the delay time can be automatically adjusted), and the alarm is automatically stopped when the person returns to the kitchen again; by analogy, no human intervention is needed; when no person returns to the kitchen for viewing after the alarm lasts for a preset time (the invention is preferably 5 minutes), the intelligent alarm system automatically closes the gas valve. The accidental danger caused by the fact that people leave the kitchen for too long time due to other things in the process of cooking when fire is fired is prevented. For example, people forget to fire and burn a kitchen stove due to the facts that people make calls, receive guests to chat, watch television, watch mobile phones and the like, and particularly old people are easy to forget, the old people can burn dishes and burn out the pot if the old people are light, and fire accidents are caused by dry burning if the old people are heavy. The intelligent alarm system can realize automatic monitoring prompt and control, is simple to operate, automatically completes gas valve switch detection, personnel detection, gas leakage monitoring and alarm prompt, control functions and the like, timely reminds personnel to return to a kitchen for inspection or close a gas valve, effectively prevents accidents from occurring and avoids serious loss.
As an embodiment of the present invention: the system further includes a gas detection module, wherein the gas detection module includes:
gas state detection unit: the device is used for acquiring the opening and closing states of a gas valve of kitchen gas cooker equipment through an electric linkage switch;
gas leakage detection unit: the gas valve is used for judging whether the kitchen gas cooker is in a cooking state or a non-cooking state according to the host equipment when the gas valve is in an opening state;
a gas control unit: and the main gas valve is used for judging that the gas of the kitchen gas cooker leaks when the kitchen gas cooker is in a non-cooking state, and controlling the main gas valve in front of the gas meter to be turned off through a preset first forced control switch.
The principle of the invention is as follows: the kitchen gas stove comprises a gas detection part, wherein the opening and closing states of a gas valve are obtained through an electric linkage switch, the kitchen gas stove is judged to be in a cooking state or a non-cooking state based on the opening and closing of the gas valve, and finally a gas main valve in front of a gas meter is controlled to be turned off through a preset first forced control switch when the kitchen gas stove is in the non-cooking state.
The invention has the beneficial effects that: the intelligent alarm system can realize automatic monitoring prompt and control, is simple to operate, automatically completes the functions of gas valve switch detection, personnel detection, gas leakage monitoring, alarm prompt, control and the like, timely reminds personnel to return to a kitchen for inspection or closes the gas valve, effectively prevents accidents and avoids serious loss.
As an embodiment of the present invention: the system further includes an alarm module, the alarm module comprising:
a first alarm unit: the time delay alarm module is used for sending a first acousto-optic alarm signal according to preset acousto-optic alarm equipment when judging that the dry burning risk exists;
a second alarm unit: the time delay processing module is used for sending a second acousto-optic alarm signal and a first voice alarm signal when the time delay processing module judges that no person is handling the dry burning risk after sending the first acousto-optic alarm signal, and controlling a second forced control switch to switch off a gas valve before a gas hose pipeline by controlling the host equipment;
a third alarm unit: and the controller is used for sending a third sound and light alarm signal and a second voice alarm signal when the gas control unit judges that the gas leaks after sending the second sound and light alarm signal and the first voice alarm signal.
The principle of the invention is as follows: the invention sends out different sound and light alarm signals according to different risk conditions through multiple alarm units, and can realize voice alarm through a voice alarm. And the main machine equipment controls the second forced control switch to switch off the gas valve before the gas hose pipeline.
The invention has the beneficial effects that: the invention is convenient to distinguish alarm behaviors and identify alarm conditions according to different sound and light alarm signals and voice alarm signals, thereby solving alarm events by control personnel and controlling the gas valve to be closed to prevent gas leakage.
As an embodiment of the present invention: the infrared detection device comprises a pyroelectric infrared control integrated circuit and a pyroelectric infrared sensor; wherein,
the pyroelectric infrared sensor is used for sensing information of personnel in a cooking process, and the sensing information comprises the existence of the personnel and behavior information of the personnel;
the pyroelectric infrared control integrated circuit is used for converting the existence of the personnel and the behavior information of the personnel into electric signals and transmitting the electric signals to the host equipment.
The principle of the invention is as follows: the invention obtains the induction information through the pyroelectric infrared control integrated circuit and the pyroelectric infrared sensor combination device, and transmits the induction information to the host device in the form of electric signals.
The invention has the beneficial effects that: the invention can detect whether personnel are guarded near the cooking kitchen cooker through the pyroelectric infrared sensor, thereby preventing the cooker from accidents.
As an embodiment of the present invention: the pyroelectric infrared control integrated circuit shown in fig. 3 comprises: the circuit comprises an MCU control chip, a decoder H, an amplifier Q, a first resistor R1, a first capacitor C1 and a comparator D; wherein,
the output end of the pyroelectric infrared sensor G is electrically connected with the input end of the MCU control chip, the output end of the MCU control chip is connected with the decoder H, the output end of the decoder H is electrically connected with the positive input end of the amplifier Q, and the negative input end of the amplifier Q is connected with an external power supply VCC through the first resistor R1; the output end of the amplifier Q is electrically connected with the positive input end of the comparator D, and the negative input end of the comparator D is electrically connected with an external reference voltage VC; the output end of the comparator D is electrically connected with the host device, and is also connected with the negative input end of the amplifier Q through a first capacitor C1; wherein,
the pyroelectric infrared sensor G is also connected with a pyroelectric infrared control integrated circuit GD, and is used for transmitting the detected information of whether personnel exist to the MCU control chip; the MCU control chip sends out a control signal, the control signal is converted into an analog electric signal through the decoder H, the analog electric signal is subjected to noise reduction through the amplifier Q, the analog electric signal subjected to noise reduction is subjected to pulse signal output through the comparator D, and the pulse signal is led into the host equipment.
An intelligent dry-heating prevention method for a kitchen gas cooker is shown in figure 4 and comprises the following steps:
step 100: monitoring first induction information of outgoing personnel in a cooking process through infrared monitoring equipment, and sending the first induction information to host equipment;
step 101: after the host equipment receives the first sensing information, judging whether a dry burning risk exists or not according to preset delay alarm time, and sending a first alarm signal when the dry burning risk exists;
step 102: after the first alarm signal is sent out, monitoring second induction information of personnel entering in the cooking process through the infrared monitoring equipment, and sending the second induction information to the host equipment;
step 103: after the host equipment receives the second sensing information, whether a person handles the dry combustion risk is judged according to preset delay control time, and when no person handles the dry combustion risk, the external gas valve is controlled to be closed.
The principle of the invention is as follows: the invention adopts infrared monitoring equipment consisting of a pyroelectric infrared control integrated circuit and a pyroelectric infrared sensor, and human body induction automatic acquisition signals consisting of the infrared monitoring equipment are used for acquiring first induction information of a human body. In the invention, the circuit is in a standby state at ordinary times, and when the gas valve is opened, the linked switch is switched on to enter a detection working state. When a person moves in front of the kitchen pyroelectric infrared sensor, a detection signal is decoded, amplified and output-controlled by a chip to trigger a next-stage delay alarm module, the delay alarm module works, the delay alarm module starts countdown according to preset time after receiving a trigger signal, and the timer is automatically cleared and restarted if receiving the trigger signal again in a timing period; if no new trigger signal is received in the timing period, the preset time is over, the alarm signal is controlled to be output, and the alarm circuit is not triggered in the timing period. When the person is in the kitchen activity all the time, the detection signal will be continuously input into the decoding chip to control the output, the time delay control circuit is triggered to automatically clear the time, the system is in the silent state, and no warning sound can be given out. When the personnel leave the kitchen temporarily, the detection signal disappears, the delay alarm module cannot obtain the trigger signal, the timing cannot be automatically reset, and after the preset default time (the delay time can be automatically adjusted), the alarm circuit is triggered immediately to remind the personnel to return to the kitchen for checking, preferably within 2 minutes.
The second detection module detects the alarm and then continuously detects the alarm within a preset time, the time is preferably 5 minutes, if no person enters a kitchen to check or remove the alarm, the time delay processing module starts a command of closing the gas valve, forcibly closes the valve, and simultaneously closes the electric switch in a linkage manner to wait for the next time to be opened again.
The invention has the beneficial effects that: the key characteristic is that the gas valve, the user and the intelligent alarm system are automatically associated with each other: and when the valve is normally closed, the electric switch is linked to be disconnected to stop monitoring. When the gas is used, the gas valve is opened, and the intelligent alarm system starts to check whether the personnel are in the kitchen. When someone is in the kitchen, the intelligent alarm system keeps silent. When no person is in the kitchen, the alarm is prompted after the default delay time (the invention is preferably 2 minutes, and the delay time can be automatically adjusted), and the alarm is automatically stopped when the person returns to the kitchen again; by analogy, no human intervention is needed; when no person returns to the kitchen for viewing after the alarm lasts for a preset time (the invention is preferably 5 minutes), the intelligent alarm system automatically closes the gas valve. The accidental danger caused by the fact that people leave the kitchen for too long time due to other things in the process of cooking when fire is fired is prevented. For example, people forget to fire and burn a kitchen stove due to the facts that people make calls, receive guests to chat, watch television, watch mobile phones and the like, and particularly old people are easy to forget, the old people can burn dishes and burn out the pot if the old people are light, and fire accidents are caused by dry burning if the old people are heavy. The intelligent alarm system can realize automatic monitoring prompt and control, is simple to operate, automatically completes gas valve switch detection, personnel detection, gas leakage monitoring and alarm prompt, control functions and the like, timely reminds personnel to return to a kitchen for inspection or close a gas valve, effectively prevents accidents from occurring and avoids serious loss.
As an embodiment of the present invention: the method further comprises the following steps:
collecting the opening and closing states of a gas valve of kitchen gas cooker equipment through a preset electric linkage switch;
when the gas valve is in an open state, judging that the kitchen gas cooker is in a cooking state or a non-cooking state according to the host equipment;
when the kitchen gas cooker is in a non-cooking state, judging that gas of the kitchen gas cooker leaks, and controlling a gas main valve in front of a gas meter to be turned off through a preset first forced control switch.
As an embodiment of the present invention: the method further comprises the following steps:
when the risk of dry burning exists, a first acousto-optic alarm signal is sent out according to preset acousto-optic alarm equipment;
after the first acousto-optic alarm signal is sent out, when no person handles the risk of dry burning, a second acousto-optic alarm signal and a first voice alarm signal are sent out, and the main machine equipment is controlled to control a second forced control switch to switch off a gas valve before a gas hose pipeline is switched off;
and after the second audible and visual alarm signal and the first audible and visual alarm signal are sent out, a third audible and visual alarm signal is sent out and a second audible and visual alarm signal is sent out when the gas of the kitchen gas cooker is leaked.
As an embodiment of the present invention: first induction information that the personnel go out through infrared monitoring facilities monitoring culinary art process to with first induction information sends host computer equipment, including following step:
the method comprises the steps that the existence information and the personnel outgoing information of personnel in the cooking process are induced through a pyroelectric infrared sensor, and the existence information and the personnel outgoing information of the personnel are used as first induction information;
and the first induction information is led into host equipment in the form of an electric signal through a pyroelectric infrared control integrated circuit preset on the periphery of the pyroelectric infrared sensor.
The principle of the invention is as follows: the kitchen gas stove comprises a gas detection part, wherein the opening and closing states of a gas valve are obtained through an electric linkage switch, the kitchen gas stove is judged to be in a cooking state or a non-cooking state based on the opening and closing of the gas valve, and finally a gas main valve in front of a gas meter is controlled to be turned off through a preset first forced control switch when the kitchen gas stove is in the non-cooking state.
The invention has the beneficial effects that: the intelligent alarm system can realize automatic monitoring prompt and control, is simple to operate, automatically completes the functions of gas valve switch detection, personnel detection, gas leakage monitoring, alarm prompt, control and the like, timely reminds personnel to return to a kitchen for inspection or closes the gas valve, effectively prevents accidents and avoids serious loss.
As an embodiment of the present invention: monitoring the state of the gas valve:
when the gas valve is normally closed, the electric switch is linked to be disconnected, the intelligent alarm system stops monitoring, and the intelligent alarm system does not alarm and is not controlled. When the valve is opened, the electric switch is linked to be closed, the intelligent alarm system enters a monitoring working state, and when personnel move in detected areas such as a kitchen (taking the kitchen as an example below), the system is in a silent state and cannot give out warning sound. Similarly, when the gas valve is not in a closed state, the gas valve gives an alarm to prompt and improve the safety.
The gas valve is opened, and the person leaves the kitchen midway:
(1) after the gas valve is opened, when the personnel leave the kitchen, intelligent alarm system can not detect personnel and move about in the kitchen, judges that the gas is being opened and nobody watches, starts the timing and waits, reaches the suggestion of triggering (delay time can adjust by oneself) after acquiescence time 2 minutes, and the suggestion personnel return to the kitchen and look over.
The intelligent alarm system continuously alarms for more than 5 minutes, and no person enters a kitchen to check or close the gas valve, then a gas valve closing instruction is started, the valve is forcibly closed, and meanwhile, the electric switch is closed in a linkage mode to wait for the next time of re-opening. (this function is selected and matched according to different product models)
And (3) gas leakage detection: when the system works, after the gas leakage is detected, an audible and visual alarm is given out, the time is delayed for five minutes, and if no human intervention exists, the gas main valve is forcibly closed. (this function is selected and matched according to different product models)
The intelligent alarm system is linked with the gas valve, the gas valve is opened to automatically detect, the detection is stopped when the gas valve is closed, the operation is easy, the additional operation is not needed, and the burden of users is not increased.
The original gas valve is compatible, and the installation requirements of different scenes are met.
The gas main valve (note: gas meter backing valve), the gas valve (note: hose backing valve) and the manual-automatic integrated electric actuator (manipulator) are combined.
As an embodiment of the present invention: the system is installed, the host is placed at a proper position of a kitchen, for example, the host is placed in a suspended ceiling, and the detection probe is placed at a position which can be effectively detected after a person enters the kitchen. A gas valve linkage switch is installed and connected to the main machine, and when the gas valve is opened, the linkage switch is smoothly opened. With the shut-off function requires the installation of an electric manipulator actuator.
As an embodiment of the present invention: the false alarm rate of the pyroelectric infrared sensor has great relation with the installation position and mode, and the correct installation can meet the following conditions:
the pyroelectric infrared sensor should be 1.5-2.0 meters away from the ground, and the side movement detection effect is good.
The pyroelectric infrared sensor is required to avoid air conditioners, refrigerators, stoves and other places sensitive to air temperature change.
Obstacles cannot be isolated in the detection range of the pyroelectric infrared sensor, such as: doors, glass, or other partitions.
As an embodiment of the present invention: the use method of the invention is that after the system is installed, all parts are checked to be good, the power supply is connected, and the power switch of the host computer is turned on.
The gas valve is opened, the monitoring mode is automatically entered, after the person leaves the kitchen and waits for 2 minutes, the alarm sounds, and the person can automatically stop the alarm when entering the kitchen and enters the normal use state.
The automatic valve closing function is provided, the valve can be automatically closed after the alarm sounds for 5 minutes, and if the alarm does not sound, the valve is regarded as a fault and is stopped.
As an embodiment of the present invention: the detection range of the pyroelectric infrared sensor is required to be in accordance with the effective range of personnel entering a kitchen, and the walking of other non-kitchen personnel is prevented from being detected by mistake and is not alarmed.
The direction, the height and the angle of the pyroelectric infrared sensor need to be properly adjusted for household pets, so that the situation that the pyroelectric infrared sensor is mistakenly detected and does not give an alarm is avoided.
Checking the working state before using the guard: and (3) opening the gas valve, leaving the kitchen for 2 minutes, alarming, and enabling the person to enter the kitchen again to automatically stop alarming so as to be normally used.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The utility model provides a dry combustion method system is prevented to kitchen gas cooking utensils intelligence which characterized in that includes:
a first monitoring module: the system comprises an infrared monitoring device, a host device and a control device, wherein the infrared monitoring device is used for monitoring first induction information of outgoing personnel in the cooking process and sending the first induction information to the host device;
the time delay alarm module: the main machine equipment is used for judging whether a dry burning risk exists or not according to preset delay alarm time after receiving first induction information, and sending a first alarm signal when the dry burning risk exists;
a second monitoring module: the infrared monitoring equipment is used for monitoring second induction information of personnel entering in the cooking process through the infrared monitoring equipment after the first alarm signal is sent out, and sending the second induction information to the host equipment;
the time delay processing module: and after the host equipment receives the second sensing information, judging whether a person handles the dry burning risk according to preset delay control time, and controlling to close the external gas valve when no person handles the dry burning risk.
2. The intelligent dry combustion prevention system for kitchen gas cookers of claim 1, further comprising a gas detection module, wherein the gas detection module comprises:
gas state detection unit: the device is used for acquiring the opening and closing states of a gas valve of kitchen gas cooker equipment through an electric linkage switch;
gas leakage detection unit: the gas valve is used for judging whether the kitchen gas cooker is in a cooking state or a non-cooking state according to the host equipment when the gas valve is in an opening state;
a gas control unit: and the main gas valve is used for judging that the gas of the kitchen gas cooker leaks when the kitchen gas cooker is in a non-cooking state, and controlling the main gas valve in front of the gas meter to be turned off through a preset first forced control switch.
3. The intelligent dry combustion prevention system for kitchen gas cookers of claim 1, further comprising an alarm module, the alarm module comprising:
a first alarm unit: the time delay alarm module is used for sending a first acousto-optic alarm signal according to preset acousto-optic alarm equipment when judging that the dry burning risk exists;
a second alarm unit: the time delay processing module is used for sending a second acousto-optic alarm signal and a first voice alarm signal when the time delay processing module judges that no person is handling the dry burning risk after sending the first acousto-optic alarm signal, and controlling a second forced control switch to switch off a gas valve before a gas hose pipeline by controlling the host equipment;
a third alarm unit: and the controller is used for sending a third sound and light alarm signal and a second voice alarm signal when the gas control unit judges that the gas leaks after sending the second sound and light alarm signal and the first voice alarm signal.
4. The intelligent dry-heating prevention system for the kitchen gas cooker according to claim 1, wherein the infrared detection device comprises a pyroelectric infrared control integrated circuit and a pyroelectric infrared sensor; wherein,
the pyroelectric infrared sensor is used for sensing information of personnel in a cooking process, and the sensing information comprises the existence of the personnel and behavior information of the personnel;
the pyroelectric infrared control integrated circuit is used for converting the existence of the personnel and the behavior information of the personnel into electric signals and transmitting the electric signals to the host equipment.
5. The intelligent dry combustion preventing system for kitchen gas cookers of claim 4, wherein the pyroelectric infrared control integrated circuit comprises: the MCU control chip, the decoder, the amplifier, the first resistor, the first capacitor and the comparator; wherein,
the output end of the pyroelectric infrared sensor is electrically connected with the input end of the MCU control chip, the output end of the MCU control chip is connected with the decoder, the output end of the decoder is electrically connected with the positive input end of the amplifier, and the negative input end of the amplifier is connected with an external power supply through the first resistor; the output end of the amplifier is electrically connected with the positive input end of the comparator, and the negative input end of the comparator is electrically connected with external reference voltage; the output end of the comparator is electrically connected with the host equipment, and the output end of the comparator is also connected with the negative input end of the amplifier through a first capacitor; wherein,
the pyroelectric infrared sensor transmits the detected information of whether personnel exist to the MCU control chip; the MCU control chip sends out a control signal, the control signal is converted into an analog electric signal through the decoder, the analog electric signal is subjected to noise reduction through the amplifier, the analog electric signal subjected to noise reduction is subjected to pulse signal output through the comparator, and the pulse signal is led into host equipment.
6. An intelligent dry-burning prevention method for a kitchen gas cooker is characterized by comprising the following steps:
monitoring first induction information of outgoing personnel in a cooking process through infrared monitoring equipment, and sending the first induction information to host equipment;
after the host equipment receives the first sensing information, judging whether a dry burning risk exists or not according to preset delay alarm time, and sending a first alarm signal when the dry burning risk exists;
after the first alarm signal is sent out, monitoring second induction information of personnel entering in the cooking process through the infrared monitoring equipment, and sending the second induction information to the host equipment;
after the host equipment receives the second sensing information, whether a person handles the dry combustion risk is judged according to preset delay control time, and when no person handles the dry combustion risk, the external gas valve is controlled to be closed.
7. The intelligent dry-heating preventing method for the kitchen gas cooker according to claim 6, further comprising:
collecting the opening and closing states of a gas valve of kitchen gas cooker equipment through a preset electric linkage switch;
when the gas valve is in an open state, judging that the kitchen gas cooker is in a cooking state or a non-cooking state according to the host equipment;
when the kitchen gas cooker is in a non-cooking state, judging that gas of the kitchen gas cooker leaks, and controlling a gas main valve in front of a gas meter to be turned off through a preset first forced control switch.
8. The intelligent dry-heating preventing method for the kitchen gas cooker according to claim 7, further comprising:
when the risk of dry burning exists, a first acousto-optic alarm signal is sent out according to preset acousto-optic alarm equipment;
after the first acousto-optic alarm signal is sent out, when no person handles the risk of dry burning, a second acousto-optic alarm signal and a first voice alarm signal are sent out, and the main machine equipment is controlled to control a second forced control switch to switch off a gas valve before a gas hose pipeline is switched off;
and after the second audible and visual alarm signal and the first audible and visual alarm signal are sent out, a third audible and visual alarm signal is sent out and a second audible and visual alarm signal is sent out when the gas of the kitchen gas cooker is leaked.
9. The intelligent dry-heating preventing method for the kitchen gas cooker as claimed in claim 6, wherein the step of monitoring first sensing information of outgoing cooking process personnel through an infrared monitoring device and sending the first sensing information to a host device comprises the following steps:
the method comprises the steps that the existence information and the personnel outgoing information of personnel in the cooking process are induced through a pyroelectric infrared sensor, and the existence information and the personnel outgoing information of the personnel are used as first induction information;
and the first induction information is led into host equipment in the form of an electric signal through a pyroelectric infrared control integrated circuit preset on the periphery of the pyroelectric infrared sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010245876.8A CN111476978A (en) | 2020-03-31 | 2020-03-31 | Intelligent dry-burning prevention system and method for kitchen gas cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010245876.8A CN111476978A (en) | 2020-03-31 | 2020-03-31 | Intelligent dry-burning prevention system and method for kitchen gas cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111476978A true CN111476978A (en) | 2020-07-31 |
Family
ID=71750360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010245876.8A Pending CN111476978A (en) | 2020-03-31 | 2020-03-31 | Intelligent dry-burning prevention system and method for kitchen gas cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111476978A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255694A (en) * | 2020-09-14 | 2021-01-22 | 吴年良 | Identification security method and device |
| CN113432862A (en) * | 2021-05-31 | 2021-09-24 | 中国能源建设集团广东省电力设计研究院有限公司 | Exhaust valve overflow detection method and system |
| CN114278966A (en) * | 2022-01-26 | 2022-04-05 | 王烈钢 | Safety gas stove and control method thereof |
| CN116311831A (en) * | 2022-12-14 | 2023-06-23 | 山东雷华智能科技有限公司 | Gas pipeline switch forgetting to turn off alarm and working method |
| CN116434134A (en) * | 2022-11-30 | 2023-07-14 | 友达光电（昆山）有限公司 | Indoor fire safety intelligent monitoring system and control method thereof |
| CN116480954A (en) * | 2023-01-12 | 2023-07-25 | 珠海格力电器股份有限公司 | Gas early warning method, device, electronic equipment and storage medium |
| CN120260254A (en) * | 2025-06-07 | 2025-07-04 | 山西国化能源有限责任公司 | A valve well monitoring and early warning method and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519061A (en) * | 2011-11-10 | 2012-06-27 | 许春香 | Intelligent range hood of internet of things |
| CN202549014U (en) * | 2012-04-05 | 2012-11-21 | 宁波市鄞州姜山永昌胶木五金厂 | Remote-control gas precaution device connected with gas stove knob |
| JP2013025443A (en) * | 2011-07-19 | 2013-02-04 | Kazuo Amano | Gas alarm fitting method and fitting unit for the same |
| CN104062936A (en) * | 2014-06-24 | 2014-09-24 | 安徽师范大学 | Intelligent coal gas switch |
| CN104392585A (en) * | 2014-10-21 | 2015-03-04 | 北京建筑大学 | Gas linkage alarm system and method thereof |
| CN208110817U (en) * | 2018-05-09 | 2018-11-16 | 河池学院 | A safety protection system for kitchen gas |
| CN208506948U (en) * | 2018-08-06 | 2019-02-15 | 信广彬 | A kind of gas burner safety controller |
-
2020
- 2020-03-31 CN CN202010245876.8A patent/CN111476978A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013025443A (en) * | 2011-07-19 | 2013-02-04 | Kazuo Amano | Gas alarm fitting method and fitting unit for the same |
| CN102519061A (en) * | 2011-11-10 | 2012-06-27 | 许春香 | Intelligent range hood of internet of things |
| CN202549014U (en) * | 2012-04-05 | 2012-11-21 | 宁波市鄞州姜山永昌胶木五金厂 | Remote-control gas precaution device connected with gas stove knob |
| CN104062936A (en) * | 2014-06-24 | 2014-09-24 | 安徽师范大学 | Intelligent coal gas switch |
| CN104392585A (en) * | 2014-10-21 | 2015-03-04 | 北京建筑大学 | Gas linkage alarm system and method thereof |
| CN208110817U (en) * | 2018-05-09 | 2018-11-16 | 河池学院 | A safety protection system for kitchen gas |
| CN208506948U (en) * | 2018-08-06 | 2019-02-15 | 信广彬 | A kind of gas burner safety controller |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255694A (en) * | 2020-09-14 | 2021-01-22 | 吴年良 | Identification security method and device |
| CN113432862A (en) * | 2021-05-31 | 2021-09-24 | 中国能源建设集团广东省电力设计研究院有限公司 | Exhaust valve overflow detection method and system |
| CN113432862B (en) * | 2021-05-31 | 2022-12-06 | 中国能源建设集团广东省电力设计研究院有限公司 | Exhaust valve overflow detection method and system |
| CN114278966A (en) * | 2022-01-26 | 2022-04-05 | 王烈钢 | Safety gas stove and control method thereof |
| CN116434134A (en) * | 2022-11-30 | 2023-07-14 | 友达光电（昆山）有限公司 | Indoor fire safety intelligent monitoring system and control method thereof |
| CN116311831A (en) * | 2022-12-14 | 2023-06-23 | 山东雷华智能科技有限公司 | Gas pipeline switch forgetting to turn off alarm and working method |
| CN116311831B (en) * | 2022-12-14 | 2025-11-25 | 山东雷华智能科技有限公司 | A gas pipeline switch left on alarm and its working method |
| CN116480954A (en) * | 2023-01-12 | 2023-07-25 | 珠海格力电器股份有限公司 | Gas early warning method, device, electronic equipment and storage medium |
| CN120260254A (en) * | 2025-06-07 | 2025-07-04 | 山西国化能源有限责任公司 | A valve well monitoring and early warning method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111476978A (en) | Intelligent dry-burning prevention system and method for kitchen gas cooker | |
| US5608378A (en) | Electric stove warning system | |
| US6552647B1 (en) | Building environment monitor and control system | |
| CN109191795A (en) | A kind of combustion gas gateway, gas safety detection system and gas-cooker | |
| CN114511982B (en) | Smoke alarm method and intelligent smoke alarm | |
| CN209310050U (en) | A kind of kitchen security alerting system | |
| CN111678174A (en) | Safety controller for household gas range | |
| CN215001727U (en) | Kitchen safety control equipment based on AI image, temperature and gas leakage monitoring | |
| US20030025605A1 (en) | Vigilant dwelling | |
| CN103982923A (en) | An intelligent unmanned gas safety monitor and monitoring method | |
| CN208282182U (en) | Gas-cooker intelligent and safe protects system | |
| CN203869111U (en) | Intelligent unmanned gas safety monitor | |
| CN218954963U (en) | Range hood with fireproof system | |
| CN107180514A (en) | A kind of domestic gas control system | |
| CN209027585U (en) | An active kitchen fire prevention alarm device | |
| CN110956776A (en) | Intelligent household gas and smoke leakage monitoring system and monitoring method | |
| CN112991661A (en) | Intelligent household kitchen smoke alarm system | |
| CN212481388U (en) | Anti-dry burning device for kitchen gas stove | |
| CN2674322Y (en) | Safety gas cooking range | |
| CN113827885A (en) | Cooking bench fire alarm processing control system | |
| CN213395473U (en) | Kitchen fire-driving person-separating device | |
| CN216667755U (en) | Safety gas stove | |
| CN208212335U (en) | A kind of wired home guard system | |
| CN213634763U (en) | Kitchen fire-away alarm device | |
| CN107869741A (en) | Stove intelligent control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200731 |
|
| RJ01 | Rejection of invention patent application after publication |