TWI752589B - Safety monitoring system for kitchen use - Google Patents

Abstract

A safety monitoring device and system is provided for kitchen use. The device includes a temperature detection circuit with a Fresnel lens, an alarm circuit and a control circuit. The control circuit determines whether it meets a specific condition of dry heating or oil fire according to the detection result of the temperature detection circuit with a Fresnel lens, and accordingly controls the alarm circuit to output an alarm. The housing is provided with the temperature detection circuit, the alarm circuit and the control circuit, and the housing is detachably arranged on a range hood or a wall in the kitchen.

Description

Kitchen Security Monitoring System

The present invention relates to a monitoring device and system, in particular to a kitchen safety monitoring device and system.

With the rise of petty bourgeoisie culture in modern society, it has led to the vigorous development of small pingshu houses or independent suites. However, the cooking areas of these small pingshu houses or independent suites are usually not equipped with range hoods or gas stoves. The heating device used is a cassette gas stove or an induction cooker. However, there is no protective device above these cooking heating devices to monitor the cooking state, so it is easy to cause dry burning and fire risk during cooking, causing great harm.

Therefore, the inventor of the present invention feels that the above-mentioned defects can be improved, and has devoted himself to research and application of theories, and finally proposes an invention with reasonable design and effective improvement of the above-mentioned defects.

The technical problem to be solved by the present invention is to provide a kitchen safety monitoring device and system in view of the deficiencies of the prior art, which can solve any range hood without a safety monitoring device, or without a range hood installed, or without any The risk of dry-burning and fire in the kitchen of the protection device when its heating device is cooking.

In order to solve the above-mentioned technical problems, the present invention provides a kitchen safety monitoring device, suitable for detecting a heating device in the kitchen, comprising: a temperature detection circuit with a Fresnel lens, which can be used to detect the upper part of the heating device a temperature; an alarm circuit, which can be used to issue an alarm; a control circuit, which is electrically connected to the temperature detection circuit with the Fresnel lens and the alarm circuit; wherein, the control circuit can be based on the Fresnel lens The detection result fed back by the temperature detection circuit, judging whether a specific dry-burning condition of a pot or a fire condition of an oil-pot is met, and correspondingly controlling the alarm circuit to issue an alarm; and a casing, the casing is provided with the temperature detection circuit with the Fresnel lens, the alarm The circuit and the control circuit are detachably arranged on a range hood or a wall in the kitchen.

Preferably, the casing is provided with a coupling piece, and the coupling piece is a magnetic attraction piece, which is adsorbed on the range hood or the wall in the kitchen by means of magnetic attraction.

Preferably, the casing is provided with a joint piece, and the joint piece is an adhesive piece, which is pasted on the range hood or the wall in the kitchen by means of sticking.

Preferably, the casing can be detachably coupled to a fixing base, and the fixing base can be pasted and fixed on the range hood or the wall in the kitchen, so that the casing can be detachably installed in the kitchen through the fixing base. the hood or the wall.

Preferably, there is a binding slot on the front side of the fixing seat, so that the shell can be detachably inserted into the binding slot, and an adhesive member is arranged on the rear side of the fixing seat, so that the fixing seat can be pasted on the kitchen by means of sticking. the cooker hood inside or on the wall.

Preferably, the control circuit can generate a temperature curve according to the detection result fed back by the temperature detection circuit with the Fresnel lens, and the temperature curve is the detection position corresponding to the temperature detection circuit with the Fresnel lens It is composed of a plurality of continuous maximum temperature values, and the control circuit can judge whether it meets a boiling water condition according to the detection result fed back by the temperature detection circuit with the Fresnel lens, and the boiling water condition is located in the corresponding detection The temperature of a pot at the measured position reaches 100°C and the temperature does not climb for a period of time, and when it is determined that the boiling water condition is met, and the temperature of the pot reaches a preset dry heating temperature greater than 100°C, the The temperature curve is compared with a pot dry-burning temperature curve stored by the control circuit, and if it matches the pot dry-fire temperature curve, it is determined that the pot dry-fire condition is met, and when it is determined that the pot dry-fire condition is met When the alarm signal is outputted to the alarm circuit, the alarm circuit can send out an alarm sound for the dry cooking of the pot.

Preferably, the control circuit is used to compare the difference between the slope of the temperature curve in a unit time and the preset slope in a unit time of the corresponding pot dry-burning temperature curve to determine whether the temperature curve conforms to the temperature curve. The temperature curve of the dry burning of the pot.

Preferably, the control circuit can output a pot dry-heating prompt signal to the alarm circuit in advance when it is determined that the water-boiling condition is met, so that the alarm circuit can issue a pot dry-boiling prompt sound in advance.

Preferably, the control circuit can generate a temperature curve according to the detection result fed back by the temperature detection circuit with the Fresnel lens, and the temperature curve is the detection position corresponding to the temperature detection circuit with the Fresnel lens It is composed of multiple consecutive maximum temperature values, and the control circuit can judge whether it meets a hot oil condition according to the detection result fed back by the temperature detection circuit with Fresnel lens, and the hot oil condition is located in the corresponding detection The temperature of an oil pan at the measured position reaches 200°C within a predetermined period of time and the temperature does not climb for a period of time, and when it is determined that the hot oil condition is met, and the temperature of the oil pan reaches a preset value greater than 200°C When the fire temperature is compared, the temperature curve is compared with the fire curve of an oil pan stored in the control circuit, and if it conforms to the fire temperature curve of the oil pan, it is determined that the oil pan fire conditions are met, and when it is determined that the oil pot fire conditions are met , output an oil pan fire alarm signal to the alarm circuit, so that the alarm circuit sends out an oil pan fire alarm sound alarm.

Preferably, the control circuit is used to compare the difference between the slope of the temperature curve in a unit time and the preset slope in a unit time of the corresponding oil pan fire temperature curve to determine whether the temperature curve conforms to the oil Pot fire temperature curve.

Preferably, the control circuit can output an oil pan fire prompt signal to the alarm circuit in advance when it is judged that the hot oil condition is met, so that the alarm circuit can issue an oil pan fire prompt sound in advance.

In order to solve the above technical problems, the present invention provides a kitchen safety monitoring device A kitchen safety monitoring system is suitable for detecting a heating device in the kitchen, including: a kitchen safety monitoring device, including: a temperature detection circuit with a Fresnel lens, which can be used to detect the upper part of the heating device a temperature; an alarm circuit, which can be used to issue an alarm; a control circuit, which is electrically connected to the temperature detection circuit with the Fresnel lens and the alarm circuit; wherein, the control circuit can be based on the Fresnel lens The detection result fed back by the temperature detection circuit is used to determine whether it meets a specific dry-burning condition of a pot or a fire condition of an oil pan, and accordingly control the alarm circuit to issue an alarm; and a casing, the casing is provided with the Fresnel The temperature detection circuit, the alarm circuit and the control circuit of the ear lens, and the casing can be detachably arranged on a range hood or a wall in the kitchen; a wireless transmission circuit is electrically connected to the control circuit and can be used with The detection result fed back by the temperature detection circuit with the Fresnel lens is transmitted. A display device can be wirelessly connected to the wireless transmission circuit, and the display device comprises: an image display module, which can be used to display the detection result fed back by the temperature detection circuit with the Fresnel lens.

Preferably, the temperature detection circuit with Fresnel lens further has a rotating electric motor, the rotating electric motor is electrically connected to the control circuit, and the display device can enable the control circuit to control the rotating electric motor through a wireless control method. The motor drives the rotation angle of the temperature detection circuit with the Fresnel lens.

Preferably, the display device forms the image display module with an application program.

The beneficial effect of the present invention is at least that the kitchen safety monitoring device and system provided by the present invention can be arbitrarily installed above the heating device for cooking and cover the entire heating device for cooking by adjusting the angle of the Fresnel lens to monitor Cooking status, and can make more accurate judgments for specific conditions that have a great impact on safety, that is, specific conditions such as pots and pans on fire . Thereby, the kitchen safety monitoring device and system provided by the embodiments of the present invention can solve any cooker hood without a safety monitoring device, or a kitchen without a cooker hood installed, or a kitchen without any protective device installed. Risk of dry burning and fire when its heating device is cooking.

For a further understanding of the features and technical content of the present invention, please refer to the following detailed descriptions and drawings of the present invention. However, the drawings provided are only for reference and description, and are not intended to limit the present invention.

Z: Kitchen Security Monitoring Device

1: Shell

10: Temperature detection circuit

101: Infrared temperature sensor

101a: Thermal Image Detectors

11: Fresnel lens

12: Control circuit

13: Rotary electric motor

14: Alarm circuit

16: Wireless transmission circuit

18: Bonding pieces

500: oil pan

600: Pots and pans

700: Heating device

800: Walls

900: Range hood

T: detection position

M: Display device

M1: image display module

M11: Array lattice

P: fixed seat

P1: Combination card slot

P2: Paste

H: height

W: width

D: depth

θ: angle

FIG. 1 is a functional block diagram of a kitchen safety monitoring device provided by the present invention.

FIG. 2 is a schematic diagram of the kitchen safety monitoring device provided by the present invention being arranged on a range hood.

FIG. 3 is a schematic diagram of the kitchen safety monitoring device provided by the present invention being arranged on a wall.

FIG. 4 is a schematic diagram of the kitchen safety monitoring device provided by the present invention.

FIG. 5 is a schematic diagram of a temperature detection circuit with a Fresnel lens provided by the present invention.

FIG. 6 is a schematic diagram of another temperature detection circuit with a Fresnel lens provided by the present invention.

FIG. 7 is a schematic diagram of the detection range of the kitchen safety monitoring device provided by the present invention.

FIG. 8 is a schematic diagram of a kitchen safety monitoring device during monitoring according to an embodiment of the present invention.

FIG. 9 is a schematic diagram of a temperature curve of dry burning of a pot according to an embodiment of the present invention.

FIG. 10 is a schematic diagram of a kitchen safety monitoring device during monitoring according to another embodiment of the present invention.

FIG. 11 is a schematic diagram of a temperature curve of an oil pan on fire according to an embodiment of the present invention.

FIG. 12 is a functional block diagram of the kitchen safety monitoring system provided by the present invention.

FIG. 13 is a schematic diagram of the kitchen safety monitoring system provided by the present invention during monitoring.

14 is a schematic diagram (1) of the kitchen safety monitoring device and the fixing base provided by the present invention.

15 is a schematic diagram (2) of the kitchen safety monitoring device and the fixing base provided by the present invention.

The following are specific specific examples to illustrate the embodiments disclosed in the present invention, and those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to the actual size, and are stated in advance. The following embodiments will further describe the related technical contents of the present invention in detail, but the disclosed contents are not intended to limit the protection scope of the present invention. In addition, the term "or", as used herein, should include any one or a combination of more of the associated listed items, as the case may be.

First, please refer to FIG. 1 to FIG. 4 , an embodiment of the present invention provides a kitchen safety monitoring device Z. As shown in FIG. 1 , the kitchen safety monitoring device Z provided by the present invention may basically include a temperature detection circuit 10 , a control circuit 12 , and an alarm circuit 14 . The temperature detection circuit 10 is electrically connected to the control circuit 12 , and the control circuit 12 is electrically connected to the alarm circuit 14 . Further, the temperature detection circuit 10 of this embodiment is a temperature detection circuit 10 with a Fresnel lens 11 , so that the viewing angle and the sensing range of the temperature detection circuit 10 can be increased by the setting of the Fresnel lens 11 . Therefore, the kitchen safety monitoring device Z can achieve the best sensing effect whether it is set on a range hood 900 (as shown in FIG. 2 ) or a wall 800 (as shown in FIG. 3 ) in the kitchen.

Moreover, the kitchen safety monitoring device provided by the present invention also includes a casing 1, The aforementioned housing 1 is provided with a temperature detection circuit 10 having a Fresnel lens 11 , a control circuit 12 , and an alarm circuit 14 , that is, the temperature detection circuit 10 , the control circuit 12 , and the alarm circuit having a Fresnel lens 11 . 14 may be provided at appropriate positions inside and outside the housing 1 . Moreover, the housing 1 can be detachably arranged on the cooker hood or the wall in the kitchen to meet different requirements.

Further, in one embodiment, as shown in FIG. 4 , the housing 1 may be provided with a coupling member 18 , which may be a magnetic attraction member, such as a magnet, which is attached to the range hood in the kitchen by means of magnetic attraction. Or on the wall, in other embodiments, the coupling member 18 may be an adhesive member that is repeatedly pasted and pasted on the cooker hood or the wall in the kitchen by means of pasting.

In addition, in one embodiment, as shown in FIG. 5 , the temperature detection circuit 10 with the Fresnel lens 11 can be single-point temperature detection, that is, it can have an infrared temperature sensor 101 , but in other implementations For example, as shown in FIG. 6 , the temperature detection circuit 10 with the Fresnel lens 11 can also be a multi-point temperature detection, that is, it can have a plurality of thermal image detectors 101a distributed in an array plane.

In addition, the detection range of the temperature detection circuit 10 with the Fresnel lens 11 can be, for example, as shown in FIG. 7 . The height H of the detection range of the kitchen security monitoring device Z with the Fresnel lens 11 is exemplified in the figure. is 70 cm, the width W may be 100 cm, the depth D may be 70 cm, and the angle θ may be at least 70 degrees. Therefore, the kitchen safety monitoring device Z can be detachably installed on the cooker hood or the wall in the kitchen according to the detection range, so as to achieve the best sensing effect.

In this embodiment, the temperature detection circuit 10 with the Fresnel lens 11 can be used to detect the temperature above the heating device 700 . The above-mentioned heating device 700 may be various cooking equipments such as gas stoves or induction cookers that provide heating and cooking. Next, for the convenience of description, the gas stove is used as the following explanation.

Further, the control circuit 12 can predict the usage status of the gas furnace in advance and give an alarm according to the detection result fed back by the temperature detection circuit 10 with the Fresnel lens 11 , so as to Avoid danger. In one embodiment, when the control circuit 12 learns that the cooking starts, it can output a prompt signal to the alarm circuit 14, so that the alarm circuit 14 emits a cooking start prompt sound. In one embodiment, when the control circuit 12 knows that the cooking is finished, it can also output an end signal to the alarm circuit 14, so that the alarm circuit 14 can send out a cooking end prompt sound. In one embodiment, when the control circuit 12 learns that the high temperature during cooking continues to rise and is dangerous, the control circuit 12 can also output an alarm signal to the alarm circuit 14, so that the alarm circuit 14 can issue an alarm sound, and can Alert relevant personnel.

It is also worth noting that, for a specific situation that has a great impact on safety, the control circuit 12 can also predict and give an alarm in advance according to the detection result fed back by the temperature detection circuit 10 with the Fresnel lens 11, so as to avoid causing extreme damage. Danger. Specifically, the control circuit 12 can determine whether certain specific conditions are met according to the detection result fed back by the temperature detection circuit 10 having the Fresnel lens 11 , for example, a specific condition such as a dry cooking pot or a frying pan. When the control circuit 12 determines that the above specific conditions are met, the corresponding control alarm circuit 14 can issue a corresponding alarm, so as to make more accurate judgments for the above specific conditions such as dry burning of pots or oil pans. and warnings to avoid causing great harm.

In an embodiment, please refer to FIG. 8 and FIG. 9 , which can be combined with FIG. 1 , when a pot 600 is placed on the gas stove to boil water, if it gradually dries up, there will be a risk of fire, which will cause great harm. The control circuit 12 can generate a temperature curve according to the detection result fed back by the temperature detection circuit 10 with the Fresnel lens 11 , where the temperature curve can be the detection result corresponding to the temperature detection circuit 10 with the Fresnel lens 11 . It is composed of a plurality of consecutive maximum temperature values measured at the position T, and the control circuit 12 can judge whether a condition for boiling water is met according to the detection result fed back by the temperature detection circuit 10 with the Fresnel lens 11 . The water condition is that the temperature of the pot 600 located at the corresponding detection position T reaches 100° C. and lasts for a period of time, such as the temperature does not climb for 4 minutes, then it is determined that the above-mentioned water-boiling conditions are met, and when it is determined that the above-mentioned water-boiling conditions are met , and when the temperature of the pot 600 reaches a When the preset dry-burning temperature of 100° C. (eg, 160° C.), the temperature curve is compared with the dry-fire temperature curve of a pot stored in the control circuit 12 . And when it conforms to the temperature curve of the pot's dry-burning temperature, it is determined that the dry-burning condition of a pot is met. In addition, when it is determined that the above-mentioned conditions for dry cooking of pots are met, an alarm signal for dry cooking of pots is output to the alarm circuit 14, so that the alarm circuit 14 sends out an alarm for the alarm sound of dry cooking of pots, so that the personnel can immediately respond to the alarm. The pot dry-burning alarm sound stops the heating operation of the gas stove manually or the gas stove can automatically stop the heating operation directly according to the pot dry-burning alarm signal.

In one embodiment, the control circuit 12 can compare the difference between the slope of the temperature curve in a unit time and the preset slope in a unit time of the corresponding pot dry-burning temperature curve to determine whether the temperature curve conforms to the pot. Dry firing temperature curve. For example, the control circuit 12 compares the temperature rising slope in a unit time of the temperature curve with the preset temperature rising slope in a unit time in the corresponding pot dry-burning temperature curve, and when the temperature rises in the unit time If the slope is greater than or equal to the preset temperature rising slope per unit time, it is determined to be in line.

In addition, the control circuit 12 can also output a warning signal for dry cooking of pots to the alarm circuit 14 in advance when it is judged that the above-mentioned conditions for boiling water are met, so that the alarm circuit 14 can issue an alarm for the warning sound of dry cooking of pots in advance. To inform the personnel in advance that the gas furnace is currently in a high-risk state, so that the personnel can manually stop the heating operation of the gas furnace in advance, so as to avoid the dry-burning state of the pots in advance.

In one embodiment, please refer to FIG. 10 and FIG. 11 , which can be combined with FIG. 1 , when the oil pan 500 is placed on the gas stove, and the hot oil of the oil pan 500 reaches the ignition point, if it continues to reheat, the There is a risk of fire, which can cause great harm. The control circuit 12 can generate a temperature curve according to the detection result fed back by the temperature detection circuit 10 with the Fresnel lens 11 , where the temperature curve can be the detection result corresponding to the temperature detection circuit 10 with the Fresnel lens 11 . The multiple consecutive highest values of the measured position T It is composed of temperature values, and the control circuit 12 can determine whether a hot oil condition is met according to the detection result fed back by the temperature detection circuit 10 with the Fresnel lens 11. Here, the hot oil condition is located in the corresponding detection The temperature of the oil pan 500 at position T reaches 200°C within a predetermined period of time, such as 2 minutes, and continues for a period of time, such as the temperature does not climb for 3 minutes, it can be determined that the above-mentioned hot oil conditions are met, and when it is determined that the hot oil is in line with the conditions, and when the temperature of the oil pan 500 reaches a preset ignition temperature (eg, 300° C.) greater than 200° C., the temperature curve is compared with an oil pot ignition curve stored in the control circuit 12, where the oil pan ignition temperature is For example, the curve can be as shown in FIG. 11 , and when it conforms to the oil pan fire temperature curve, it is determined that a oil pan fire condition is met. In addition, when it is determined that the above-mentioned oil pan fire condition is met, an oil pan fire alarm signal is output to the alarm circuit 14, so that the alarm circuit 14 sends an alarm of an oil pan fire alarm sound, so that the personnel can immediately according to the issued oil pan fire The alarm sound stops the heating operation of the gas furnace manually or the gas furnace can automatically stop the heating operation directly according to the alarm signal of the dry burning of the pot.

In one embodiment, the control circuit 12 may compare the difference between the slope of the temperature curve in a unit time and the preset slope in a unit time of the corresponding oil pan fire temperature curve to determine whether the temperature curve conforms to the oil pan fire. Temperature curve. For example, the control circuit 12 compares the temperature rising slope in a unit time of the temperature curve with the preset temperature rising slope in a unit time in the corresponding pot oil pan fire temperature curve, when the temperature rises in the unit time If the slope is greater than or equal to the preset temperature rising slope per unit time, it is determined to be in line.

In addition, the control circuit 12 can also output an oil pan fire warning signal in advance to the alarm circuit 14 when it is determined that the above-mentioned hot oil condition is met, so that the alarm circuit 14 can issue a warning sound of the oil pot fire in advance to advance Inform personnel that the gas furnace is currently in a high-risk state, so that personnel can manually stop the heating operation of the gas furnace in advance, so as to avoid the oil pan fire in advance.

Please refer to FIG. 12 and FIG. 13 , an embodiment of the present invention provides a kitchen safety monitoring device Z and a display device M to form a kitchen safety monitoring system.

The display device M in this embodiment may be a device having a wireless transceiver function and a display function, such as a mobile phone or a tablet. In addition, the temperature detection circuit 10 with the Fresnel lens 11 in this embodiment can be used for multi-point temperature detection, that is, it can have a plurality of thermal image detectors 101a distributed in an array plane (as shown in FIG. 6 ). And the thermal image detector 101a can, for example, convert the thermal radiation intensity emitted from the surface of the object to be detected into thermal images with relatively different temperature distributions. In addition, the control circuit 12 of this embodiment is electrically connected to a wireless transmission circuit 16 , so that the thermal image generated by the temperature detection circuit 10 with the Fresnel lens 11 is processed by the control circuit 12 and then transmitted to the display device through the wireless transmission circuit 16 . M is displayed.

In this embodiment, the display device M includes an image display module M1, which can be used to display the detection result fed back by the temperature detection circuit 10 with the Fresnel lens 11, that is, it can be used to display the temperature distribution corresponding to different temperature distributions. Thermal image. The display device M of the present embodiment uses an application program (APP) to form the image display module M1, but it can also be a combination of hardware and firmware or software. In addition, the image display module M1 of this embodiment can correspondingly change the color depth of the displayed thermal image according to the detection result fed back by the temperature detection circuit 10 with the Fresnel lens 11 , that is, the higher the feedback temperature value, the higher the display temperature. The darker the color is, and the color depth is displayed in the array grid M11. Therefore, when the kitchen safety monitoring device Z is initially installed, all the stoves on the gas stove can be ignited. At this time, the personnel can see the displayed thermal image through the image display module M1 of the display device M, so as to adjust the The detection angle of the temperature detection circuit 10 with the Fresnel lens 11 allows the array grid M11 to cover the hot spots of all the furnaces of the entire gas furnace. That is to say, all stove heat sources covered will be included in the monitoring scope.

In order to adjust the detection angle of the temperature detection circuit 10 with the Fresnel lens 11 more conveniently, the temperature detection circuit 10 with the Fresnel lens 11 in this embodiment may further have a rotating electric motor 13. The rotary electric motor 13 is electrically connected to the control circuit 12, and the display device M can make the control circuit 12 control the rotary electric motor 13 to drive the temperature detection circuit 10 with the Fresnel lens 11 to rotate through a wireless control method. Therefore, the detection angle of the temperature detection circuit 10 with the Fresnel lens 11 is adjusted so that the array grid M11 covers the hot spots of all the furnaces of the entire gas furnace.

Please refer to FIG. 14 , the housing 1 of the kitchen safety monitoring device Z of the present embodiment is detachably coupled to a fixing base P. As shown in FIG. Moreover, the fixing seat P can be fixed on the range hood or the wall in the kitchen by sticking, so that the housing 1 can be detachably installed on the range hood or the wall in the kitchen through the fixing seat P. Further, a binding slot P1 is defined on the front side of the fixing base P, so that the casing 1 can be detachably inserted into the binding slot P1, and an adhesive member P2 is arranged on the rear side of the fixing base P, so that the fixing base P can be pasted by an adhesive method. On the cooker hood in the kitchen or on the wall. In this way, the kitchen safety monitoring device Z of the present embodiment can be detachably installed on the range hood or the wall in the kitchen through the installation of the fixing base P. As shown in FIG.

In summary, the kitchen safety monitoring device and system provided by the embodiments of the present invention can be arbitrarily installed above the heating device for cooking and cover the entire heating device for cooking by adjusting the angle of the Fresnel lens to monitor cooking. In addition, it can make more accurate judgments for specific situations that have a great impact on safety, that is, specific situations such as dry cooking of pots and oil pans, so as to predict in advance so that personnel can respond quickly and prevent the occurrence of greater risks. Thereby, the kitchen safety monitoring device and system provided by the embodiments of the present invention can solve the problem of heating any cooker hood without a safety monitoring device, or a kitchen without a cooker hood installed, or without any protective device installed in it. Risk of dry burning and fire when the appliance is cooking.

Z: Kitchen Security Monitoring Device

1: Shell

11: Fresnel lens

700: Heating device

900: Range hood

Claims (11)

A kitchen safety monitoring system is suitable for detecting a heating device in the kitchen, including: a kitchen safety monitoring device, including: a temperature detection circuit with a Fresnel lens, which can be used to detect the temperature above the heating device ; an alarm circuit, which can be used to issue an alarm; a control circuit, which is electrically connected to the temperature detection circuit with the Fresnel lens and the alarm circuit; wherein, the control circuit can detect the temperature according to the Fresnel lens. The detection result fed back by the test circuit is used to judge whether it meets the specific dry burning condition of a pot or the fire condition of an oil pan, and accordingly control the alarm circuit to issue an alarm; a wireless transmission circuit, electrically connected to the control circuit, can use to transmit the detection result fed back by the temperature detection circuit with Fresnel lens; and a casing, the casing is provided with the temperature detection circuit with Fresnel lens, the alarm circuit, the control circuit and the wireless transmission circuit, and the casing is provided with a joint so that it can be detachably installed on a range hood or a wall in the kitchen; a display device can be wirelessly connected to the wireless transmission circuit, and the display device includes: an image display module, Can be used to display the detection result fed back by the temperature detection circuit with the Fresnel lens, the display device uses an application to form the image display module, and the image display module is configured to display an array grid arranged in an array manner All the hot spots on the heating device; wherein, the temperature detection circuit with Fresnel lens has a rotating electric motor, the rotating electric motor is electrically connected to the control circuit, and the display device can make the The control circuit controls the rotation angle of the rotating electric motor to drive the temperature detection circuit with the Fresnel lens to rotate, so as to make the temperature of the Fresnel lens The angle of rotation of the temperature detection circuit enables the array grid to cover all the hot spots on the heating device. The kitchen safety monitoring system according to claim 1, wherein the coupling element is a magnetic attraction element, which is adsorbed on the range hood or the wall in the kitchen by means of magnetic attraction. The kitchen safety monitoring system according to claim 1, wherein the coupling member is an adhesive member, which is pasted on the range hood or the wall in the kitchen by an adhesive method. The kitchen safety monitoring system according to claim 1, wherein the housing can be detachably combined with a fixing seat, and the fixing seat can be pasted and fixed on the range hood or the wall in the kitchen, so that the housing can be more The range hood in the kitchen or the wall is detachably arranged through the fixing base. The kitchen safety monitoring system according to claim 4, wherein a combination slot is defined on the front side of the fixing base, so that the casing can be detachably inserted into the combination slot, and an adhesive member is arranged on the rear side of the fixing base, so that the The fixing base can be pasted on the cooker hood or the wall in the kitchen by means of pasting. The kitchen safety monitoring system according to claim 1, wherein the control circuit can generate a temperature curve according to the detection result fed back by the temperature detection circuit with the Fresnel lens, and the temperature curve is the temperature curve of the Fresnel lens The temperature detection circuit is composed of a plurality of continuous maximum temperature values of the detection position corresponding to the temperature detection circuit, and the control circuit can judge whether it meets a boiling water condition according to the detection results fed back by the temperature detection circuit with the Fresnel lens. , the boiling water condition is that the temperature of a pot at the corresponding detection position reaches 100°C and the temperature does not climb for a period of time, and when it is determined that the boiling water condition is met, and when the temperature of the pot reaches a temperature greater than When the preset dry heating temperature of 100°C is used, the temperature curve is compared with the dry heating temperature curve of a pot stored in the control circuit, and if it conforms to the dry heating temperature curve of the pot, it is determined that the dry heating condition of the pot is met. And when it is judged that it meets the dry burning conditions of the pot When the alarm signal is outputted to the alarm circuit, the alarm circuit can send out an alarm sound of a dry cooking alarm. The kitchen safety monitoring system according to claim 6, wherein the control circuit is configured to compare the slope of the temperature curve in a unit time with the corresponding preset slope of the pot dry-burning temperature curve in a unit time. difference to determine whether the temperature curve conforms to the dry-burning temperature curve of the pot. The kitchen safety monitoring system as claimed in claim 6, wherein the control circuit can output a pot dry-burning prompt signal to the alarm circuit in advance when it is determined that the water boiling condition is met, so that the alarm circuit can pre-issue a The alarm of the cookware dry-burning sound. The kitchen safety monitoring system according to claim 1, wherein the control circuit can generate a temperature curve according to the detection result fed back by the temperature detection circuit with the Fresnel lens, and the temperature curve is the temperature curve of the Fresnel lens The temperature detection circuit is composed of a plurality of continuous maximum temperature values of the detection position corresponding to the temperature detection circuit, and the control circuit can judge whether it meets a hot oil condition according to the detection results fed back by the temperature detection circuit with Fresnel lens. , the hot oil condition is that the temperature of an oil pan at the corresponding detection position reaches 200°C within a predetermined period of time and the temperature does not climb for a period of time, and when it is determined that the hot oil condition is met, and the oil pan When the temperature reaches a preset ignition temperature greater than 200°C, the temperature curve is compared with the ignition curve of an oil pan stored in the control circuit, and when it conforms to the ignition temperature curve of the oil pot, it is determined that the oil pot ignition conditions are met, And when it is determined that the oil pan fire condition is met, an oil pan fire alarm signal is output to the alarm circuit, so that the alarm circuit emits an alarm of an oil pan fire alarm sound. The kitchen safety monitoring system according to claim 9, wherein the control circuit is configured to compare the difference between a slope of the temperature curve in a unit time and a preset slope in a unit time of the corresponding oil pan fire temperature curve , to determine whether the temperature curve conforms to the oil pan fire temperature curve. The kitchen safety monitoring system as claimed in claim 9, wherein the control circuit can output an oil pan fire prompt signal to the alarm circuit in advance when it is determined that the hot oil condition is met, so that the alarm circuit can send out an oil in advance. Alarm for the sound of the pot fire.

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