CN111197242B - Life body detection method for household appliance and household appliance - Google Patents
Life body detection method for household appliance and household appliance Download PDFInfo
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- CN111197242B CN111197242B CN201811375729.1A CN201811375729A CN111197242B CN 111197242 B CN111197242 B CN 111197242B CN 201811375729 A CN201811375729 A CN 201811375729A CN 111197242 B CN111197242 B CN 111197242B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/006—Safety devices
Abstract
The invention discloses a life body detection method for household electrical appliance equipment and the household electrical appliance equipment. If the existence of the living body is detected, sending a prompt message, and further forbidding the operation of the conventional process; and if the existence of the living body is not detected, running a conventional flow. According to the household appliance provided by the invention, whether the life body characteristic information of people or animals exists in the object placing cavity is judged by analyzing the signals collected by the arranged array type infrared temperature sensors through the control unit, so that the people or animals can be prevented from existing in the cavity of the appliance, and the safety protection level of the household appliance is further improved. The invention judges by various rules, has high detection accuracy and small probability of error judgment.
Description
Technical Field
The invention belongs to the field of household appliances, particularly relates to safe use of the household appliances, and particularly relates to a life detection method for the household appliances and the household appliances.
Background
With the increasing living standard of people, the existing household appliances, including washing machines, clothes dryers, washing and drying integrated machines and the like, are not provided with life body detection devices. The multifunctional electric heating cooker brings convenience to people and brings certain potential safety hazards, and particularly, when children are at home alone or adults are not well supervised, misoperation is easy to occur and injuries are easy to occur.
The existing washing machine is provided with various sensors related to washing, such as a water level sensor and a temperature sensor, but the specific situation that a user puts in the washing machine cannot be judged before washing. When children or other living objects enter the washing machine, the washing machine cannot recognize the objects, and the objects are easily damaged.
In order to prevent children or other living objects from entering the washing machine to cause injury, some manufacturers have made some improvements to the existing washing machine, for example, the chinese patent application discloses a drum washing machine, which includes a washing machine casing, a washing machine door body, and a drum and a motor installed in the washing machine casing, and the drum washing machine further includes an induction module installed in the washing machine casing to control the opening or closing of the washing machine door body, and an induction magnetic card matched with the induction module. According to the drum washing machine, the induction module and the induction magnetic card matched with the induction module are arranged, so that the opening or closing of the washing machine door body is controlled by the induction module and the induction magnetic card, a child cannot open the washing machine door body to enter the drum in the state that the washing machine door body is closed, and the washing machine door body cannot be closed even if the child enters the drum in the state that the washing machine door body is opened, so that damage is effectively prevented.
Although the washing machine structure can prevent children from mistakenly entering the drum washing machine to cause injury, the structure of the induction module and the induction magnetic card is complex, the manufacturing cost is high, and meanwhile, the induction magnetic card is easy to lose, so that the problem that the door of the washing machine cannot be normally opened is caused.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a life body detection method capable of detecting whether children or pets exist in equipment.
Another object of the present invention is to provide a home appliance having the method for detecting a living body.
In order to solve the technical problems, the invention adopts the technical scheme that:
a life body detection method for household electrical appliance is characterized by that the household electrical appliance is powered on, and the life body characteristics detection is implemented, and the temperatures of several points in the chamber for placing articles of household electrical appliance are detected, and compared with preset judgement condition, the judgement of that the life body exists or not is made.
Furthermore, an array infrared temperature sensor is used for detecting the temperature of n detection points of the a × b array, and n = a × b.
Further, the detection points are divided into at least two areas according to the detection temperature, the detection points which meet the set conditions form a first area, the detection points around the first area form a second area, and the preset judgment conditions are as follows: if the difference value between the temperature average value of each detection point in the first area and the temperature average value of each detection point in the second area is larger than a set value, the existence of a living body in the cavity is judged.
Furthermore, the detection temperature of each detection point in the first area is within a preset range interval.
Further, the detection points forming the first region in accordance with the set condition are adjacent to each other.
Further, the number of the first area detection points satisfies the set number.
Further, detection is carried out at intervals of a set time, and if the detection for M times does not meet preset judgment conditions, it is judged that no living body exists in the chamber.
Further, the method for detecting the living body specifically comprises the following steps:
s1, acquiring temperature data of a detection point, and executing operation;
s2, judging whether the temperature Ti of the detection point is in a temperature interval T1-T2, wherein T1 is more than Ti and less than T2; if yes, executing the step S3, and if not, executing the step S7;
s3, calculating the number Pi of the detection points with the detection temperature within the temperature interval of T1-T2, if P1 is more than Pi and less than Pn, executing the step S4, otherwise executing the step S7;
s4, judging whether at least n1 points are adjacent in the detection points in the interval from T1 to T2, if so, executing the step S5, and if not, executing the step S7;
s5, forming the n1 detection points into a first area A1, forming detection points around the area A1 into a second area A2, calculating a temperature average value T3 of each detection point in the area A1, calculating a temperature average value T4 of each detection point in the area A2, calculating a difference value delta T between the T3 and the T4, if the delta T is larger than the delta T1, executing a step S6, otherwise executing a step S7;
s6, judging that a living body exists in the cavity, and forbidding starting of a conventional process;
s7, judging that no living body exists in the chamber, and continuing to execute a conventional process;
t1, T2, P1, pn, n1 and delta T1 are preset values.
Or, the further detection method is as follows:
s1', acquiring temperature data of a detection point, counting K, judging whether K reaches a set number K, if so, executing a step S7', otherwise, executing operation, and entering the next step;
s2', judging whether the temperature Ti of the detection point is in a temperature interval T1-T2, wherein T1 is more than Ti and less than T2; if yes, executing the step S3', otherwise, returning to the step S1';
s3', calculating the number Pi of detection points with the detection temperature in a temperature interval of T1-T2, if P1 is less than Pi and less than Pn, executing a step S4', and if not, returning to the step S1';
s4', judging whether at least n1 points are adjacent in the detection points in the interval T1-T2, if so, executing the step S5', otherwise, returning to the step S1';
s5', forming the n1 detection points into a first area A1, forming detection points around the area A1 into a second area A2, calculating a temperature average value T3 of each detection point in the area A1, calculating a temperature average value T4 of each detection point in the area A2, calculating a difference value delta T between the T3 and the T4, if delta T is larger than delta T1, executing a step S6', and if not, returning to the step S1';
s6', judging that a living body exists in the cavity, and forbidding starting of a conventional process;
s7', judging that no living body exists in the chamber, continuing to execute a conventional flow,
t1, T2, P1, pn, n1, delta T1 and K are preset values.
Further, if the existence of a living body in the chamber is detected, the control system of the household appliance forbids starting a conventional flow and sends prompt information;
preferably, the prompt message is a sound, and/or a text, and/or a light, and/or an image.
According to the household appliance, the array type infrared temperature sensor is arranged at the placing opening of the placing cavity of the household appliance;
preferably, the array temperature sensor is arranged at the upper part of the putting-in port, the detection range is projected into the cavity at an angle theta, and theta is more than 0 degree and less than 90 degrees;
preferably, the detection range of the array type temperature sensor is projected to the lower area of the inner space of the chamber;
preferably, the household appliance has a life body feature detection program, and the detection program is automatically operated or manually operated;
preferably, the life body feature detection program is an automatic operation program, and the home appliance device has a module for controlling the automatic operation of the life body feature detection program to be turned on/off.
The household appliance is a clothes treatment device such as a washing machine, a clothes dryer and a washing and drying integrated machine, or a refrigeration storage device such as a refrigerator and a freezer.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
According to the invention, the temperature of a plurality of points in the object placing chamber is detected before the household appliance starts the set program, so as to judge whether an animate object enters, and effectively avoid the damage caused by the fact that the animate object enters the equipment.
According to the household appliance provided by the invention, the control unit is used for analyzing and judging whether the life body characteristic information of people or animals exists in the storage cavity or not according to the signals collected by the arranged array type infrared temperature sensors, so that the people or animals can be prevented from existing in the cavity of the household appliance, and the safety protection level of the household appliance is further improved.
The invention detects the temperature of multiple points in the equipment through the array infrared temperature sensor, and judges through multiple rules, thus having high detection accuracy and small probability of error judgment.
The working state of the sensor is controlled by using the power switch of the equipment, the control structure is simple, the realization is easy, and the power supply can be saved.
The household appliance is also provided with an alarm unit, and after the sensor detects that people or animals exist in the chamber, the alarm unit can send alarm information to remind an operator to pay attention and timely deal with the potential safety hazard.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic diagram of a household appliance for detecting a living body according to the present invention;
fig. 2 is a schematic diagram of the detection points a and b of the infrared temperature sensor of the present invention;
FIG. 3 is a schematic view of a first region of the inspection spots of a x b of the present invention;
FIG. 4 is a schematic diagram illustrating a control flow of the home appliance according to the present invention;
FIG. 5 is a schematic flow chart of a method of detecting a living body according to the present invention;
FIG. 6 is a schematic flow chart of another method for detecting a living body according to the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it for those skilled in the art by reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the household electrical appliance according to the present invention is a clothes processing device, specifically, a drum washing machine, but not limited to the drum washing machine, and may also be a clothes dryer, a washing and drying integrated machine, or a refrigeration storage device, etc., an array infrared temperature sensor 3 is installed at a clothes input port of the drum washing machine 1, the array infrared temperature sensor 3 can remotely detect the temperature of a plurality of detection points, the detected temperature point array is an array of a × b (see fig. 2), that is, the number of rows of the detection point array is a, the number of columns is b, and the detected detection point number n = a × b. The array may be 8*8, 12 × 12, 16 × 16, etc., and the drum washing machine of the present invention preferably uses 16 × 16 arrays of infrared temperature sensors. In order to reduce the installation quantity of the sensors and expand the detection range, the array type temperature sensor 3 is installed at the upper part of the clothes putting port, the detection range is obliquely projected into the chamber 2 from front to back at an angle theta, 0 degrees & lt theta & lt 90 degrees, and the lower area of the inner space of the chamber of the washing machine is covered. The temperature of the detection points detected by the array type infrared temperature sensor 3 is fed back to a control system of the washing machine according to the array arrangement sequence.
The household appliance provided by the invention is provided with the life body characteristic detection program, and the detection program is automatically operated or manually operated, namely, after the household appliance is electrified, the life body characteristic detection program is automatically or manually started. Further, if the life body feature detection program is an automatic operation program, the household appliance further has a module for controlling the automatic operation of the life body feature detection program to be turned on/off.
Further, in order to improve the safety performance, the device may be further configured to prohibit the normal program from being started before the end of the life feature detection program.
The life body detection method of the household electrical appliance comprises the steps of executing life body characteristic detection after the household electrical appliance is electrified, detecting the temperature of a plurality of points in a chamber for placing objects in the household electrical appliance, and comparing the temperature with preset judgment conditions to judge whether a life body exists. If the existence of the living body is detected, sending a prompt message, and further forbidding the operation of the conventional process; if no living body is detected, the routine flow is executed (see fig. 4).
Specifically, as shown in fig. 3, the detection points are divided into at least two areas according to the detected temperature, the detection points meeting the set conditions form a first area A1, the detection points around the first area A1 form a second area A2, the temperature average value T3 of the detection points of the first area A1, the temperature average value T4 of the detection points of the second area A2, and the difference Δ T = | -T3-T4 |, between T3 and T4 are calculated, and if Δ T is greater than the set value Δ T1, it is determined that a living body exists in the chamber.
The detection temperature of each detection point in the first area is within a preset range interval.
Furthermore, the detection points forming the first region according to the set condition are adjacent.
Further, the number of the first area detection points satisfies the set number.
Further, detection is carried out at intervals of a set time, and if the detection for M times does not meet preset judgment conditions, it is judged that no living body exists in the chamber.
Example one
As shown in fig. 5, the operation process of the laundry treating apparatus according to the present embodiment is as follows: after the clothes treatment device is powered on, the array infrared temperature sensor detects the temperature of an array surface in the clothes treatment device to obtain the temperature value of each detection point of the array surface, the control system starts data operation, firstly, whether the temperature Ti of the detection point is between temperature intervals (T1, T2), namely T1 < Ti < T2, is judged, and if the temperature of the detection point is not in the temperature interval (T1, T2), no living body is judged in the clothes treatment device; if the temperature Ti of the detection points is between the temperature intervals (T1, T2), calculating the number Pi of the detection points between the temperatures (T1, T2), and if Pi is larger than Pn or Pi is smaller than P1, judging that no living body exists in the interior; if P1 < Pi < Pn, judging whether at least n1 points in the detection points between (T1 and T2) are adjacent, if no n1 points are adjacent, judging that no life body exists in the interior; if n1 points are adjacent, the n1 points form a first area A1, the temperature average value T3 of each detection point in the first area A1 is calculated, the temperature average value T4 of the detection points in a second area A2 around the first area A1 is calculated, the absolute difference value delta T between the T3 and the T4 is calculated, and if the delta T is less than or equal to the delta T1, no living body is judged to exist in the interior; if Δ T > Δ T1, it is determined that a living body exists inside the laundry treatment apparatus.
And when the control system judges that a living body exists in the clothes treatment device, the clothes treatment device is forbidden to start a conventional process and sends prompt information. The prompt message may be a sound, text, image or other means.
According to the experimental result, the parameters are set as follows: t1 may be set to a value between 30-32 deg.C, T2 may be set to a value between 38-40 deg.C, P1 may be set to a value between 8-12, pn is the total number of detection points, n1 may be set to a value between 2-5, and Δ T1 may be set to a value between 1-3 deg.C.
Example two
As shown in fig. 6, the present embodiment is different from the first embodiment in that, in order to make the determination result more accurate, it is determined that there is no living body inside by a plurality of detection determinations. In particular to a method for preparing a high-performance nano-silver alloy,
after the clothes treatment device is powered on, the array infrared temperature sensor detects the temperature of an array surface in the clothes treatment device, the temperature value of each detection point of the array surface is obtained and recorded as K, whether K reaches a set number of times K or not is judged, and if yes, no life body exists in the clothes treatment device; if not, the control system starts data operation, whether the temperature Ti of the detection point is between temperature intervals (T1, T2) is judged, namely T1 < Ti < T2, and if the temperature of the detection point is not in the temperature interval (T1, T2), the control system judges that no living body exists inside; if the temperature Ti of the detection points is between the temperature intervals (T1, T2), calculating the number Pi of the detection points between the temperatures (T1, T2), and if Pi is larger than Pn or Pi is smaller than P1, judging that no living body exists inside; if P1 < Pi < Pn, judging whether at least n1 points in the detection points between (T1 and T2) are adjacent, if no n1 points are adjacent, judging that no life body exists in the interior; if n1 points are adjacent, the n1 points form a first area A1, the temperature average value T3 of each detection point in the first area A1 is calculated, the temperature average value T4 of the detection points in a second area A2 around the first area A1 is calculated, the absolute difference value delta T between the T3 and the T4 is calculated, and if the delta T is less than or equal to the delta T1, no living body is judged to exist in the interior; if Δ T > Δ T1, it is determined that a living body exists inside the laundry treatment apparatus.
And when the control system judges that a living body exists in the clothes treatment device, the clothes treatment device is forbidden to start a conventional process and sends prompt information. The prompt message may be a sound, text, image or other means.
According to the experimental result, the parameters are set as follows: t1 may be set to a value between 30-32 deg.C, T2 may be set to a value between 38-40 deg.C, P1 may be set to a value between 8-12, pn is the number of total detection points, n1 may be set to a value between 2-5, Δ T1 may be set to a value between 1-3 deg.C, and K may be set to a value between 3-6 times.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (12)
1. A life body detection method for household electrical appliance, the household electrical appliance is electrified, carry out the detection of life body characteristic, characterized by, detect the temperature of the multiple points in the chamber of the household electrical appliance putting things, compare with predetermined judgement condition, judge whether there is life body to exist;
dividing the detection points into at least two areas according to the detection temperature, wherein the detection points meeting the set conditions form a first area, the detection points around the first area form a second area, and the preset judgment conditions are as follows: if the difference value between the temperature average value of each detection point in the first area and the temperature average value of each detection point in the second area is larger than a set value, the existence of a living body in the cavity is judged, wherein the detection temperature of each detection point in the first area meets the preset range interval, and the detection points which meet the set conditions and form the first area are adjacent.
2. The method as claimed in claim 1, wherein the temperature of n detection points of the a x b array is detected by using an array infrared temperature sensor, wherein n = a x b.
3. The method as claimed in claim 1, wherein the number of the first area detection points satisfies a predetermined number.
4. The method as claimed in any one of claims 1 to 3, wherein the detection is performed every a predetermined time interval, and if the predetermined determination condition is not satisfied for each of the M consecutive detections, it is determined that no living body is present in the chamber.
5. A method for detecting a vital body of an electric home appliance according to any one of claims 1 to 3, characterized in that it comprises:
s1, acquiring temperature data of a detection point, and executing operation;
s2, judging whether the temperature Ti of the detection point is in a temperature interval T1-T2, wherein T1 is more than Ti and less than T2; if yes, executing the step S3, and if not, executing the step S7;
s3, calculating the number Pi of the detection points with the detection temperature within the temperature interval of T1-T2, if P1 is more than Pi and less than Pn, executing the step S4, otherwise executing the step S7;
s4, judging whether at least n1 points are adjacent in the detection points in the interval from T1 to T2, if so, executing the step S5, and if not, executing the step S7;
s5, forming the n1 detection points into a first area A1, forming detection points around the area A1 into a second area A2, calculating a temperature average value T3 of each detection point in the area A1, calculating a temperature average value T4 of each detection point in the area A2, calculating a difference value delta T between the T3 and the T4, if the delta T is larger than the delta T1, executing a step S6, otherwise executing a step S7;
s6, judging that a living body exists in the cavity, and forbidding starting of a conventional process;
s7, judging that no living body exists in the chamber, and continuing to execute a conventional process;
t1, T2, P1, pn, n1 and delta T1 are preset values.
6. The method as claimed in claim 1, wherein if there is a living body in the detection chamber, the control system of the home appliance prohibits starting the normal process and issues a prompt message.
7. The method as claimed in claim 6, wherein the prompt message is a voice, and/or a text, and/or a light, and/or an image.
8. An electric home appliance using the life detection method as claimed in any one of claims 1 to 7, wherein the array-type infrared temperature sensor is installed at the input port of the storage chamber of the electric home appliance.
9. The household appliance according to claim 8, wherein the array temperature sensor is installed at the upper part of the input port, the detection range is projected into the chamber at an angle θ, and the angle θ is greater than 0 ° and less than 90 °.
10. The household electrical appliance according to claim 8, wherein the array-type temperature sensor detection range is projected to a lower region of the inner space of the chamber.
11. The home device of claim 8, wherein the home device has a life style detection program, and the detection program is automatically or manually operated.
12. The home appliance of claim 11, wherein the biometric characteristic detection program is an automatic execution program, and the home appliance comprises a module for controlling the automatic execution of the biometric characteristic detection program to be turned on/off.
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| CN204211973U (en) * | 2014-09-25 | 2015-03-18 | 江左 | A kind of safety-type washing machine preventing human body from entering |
| JP2015096233A (en) * | 2015-01-26 | 2015-05-21 | 日立アプライアンス株式会社 | Washing machine |
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| CN207397085U (en) * | 2017-11-13 | 2018-05-22 | 无锡同方聚能控制科技有限公司 | A kind of detection device, electrical equipment and intelligent domestic system |
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| KR20050097756A (en) * | 2004-04-02 | 2005-10-10 | 주식회사 대우일렉트로닉스 | Method for controlling laundry process to protect children |
| CN204211973U (en) * | 2014-09-25 | 2015-03-18 | 江左 | A kind of safety-type washing machine preventing human body from entering |
| JP2015096233A (en) * | 2015-01-26 | 2015-05-21 | 日立アプライアンス株式会社 | Washing machine |
| CN106854827A (en) * | 2016-08-29 | 2017-06-16 | 青岛海尔滚筒洗衣机有限公司 | A kind of dryer sentences drying method |
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