阅读说明：本技术 一种简易儿童洗手液自动发泡出液方法 (Simple automatic foaming liquid discharging method for children hand sanitizer ) 是由 王艳玲 郑紫微 于 2020-12-18 设计创作，主要内容包括：本发明涉及一种简易儿童洗手液自动发泡出液方法,通过在确定洗手液机前方存在儿童用户时,会检测该儿童用户的当前情绪状态,并且在确定儿童用户的情绪状态后再去识别儿童用户是否有洗手意愿,并且在确定儿童用户需要洗手时,检测儿童用户的待清洗手掌部位的细菌类型、皮肤类型以及待清洗手掌部位的污染度,由洗手液机自动地将与该儿童用户当前待清洗手掌皮肤类型相匹配且消杀该手掌上细菌类型的发泡液输出,以方便儿童用户的洗手清洁需要,并且还保护了儿童用户的手掌皮肤,避免非匹配发泡液对于儿童用户手掌皮肤的伤害。(The invention relates to a simple automatic foaming liquid discharging method of a child hand sanitizer, which is characterized in that when a child user is determined to be in front of a hand sanitizer machine, the current emotional state of the child user is detected, whether the child user has a hand washing intention is identified after the emotional state of the child user is determined, and when the child user is determined to need to wash hands, the bacterial type and the skin type of a palm part to be washed of the child user and the pollution degree of the palm part to be washed are detected, and the hand sanitizer machine automatically outputs a foaming liquid which is matched with the current palm skin type to be washed of the child user and kills the bacterial type on the palm, so that the hand washing cleaning needs of the child user are facilitated, the palm skin of the child user is protected, and the palm skin of the child user is prevented from being injured by the non-matched foaming liquid.)

1. A simple automatic foaming liquid discharging method of a child hand sanitizer is characterized by comprising the following steps of 1-13:

step 1, detecting whether a child user exists in front of a liquid soap dispenser;

step 2, judging and processing according to the detection result:

when a child user exists, turning to the step 3; otherwise, after the detection is suspended for a preset time period, the step 1 is switched to;

step 3, detecting the emotional state of the child user, and turning to step 4;

and 4, processing according to the emotion state detection result of the child user:

when the emotional state of the child user is not excited, turning to step 5; otherwise, after the hand sanitizer plays the video for relieving the current excited emotion of the child user, the step 3 is carried out;

step 5, recognizing the hand washing intention of the child user, and turning to step 6;

step 6, processing is carried out according to the hand washing intention recognition result of the child user:

when the children user wants to wash hands, the process goes to step 7; otherwise, turning to the step 1;

step 7, detecting the bacteria type and the skin type of the palm part to be cleaned of the child user, and turning to step 8;

step 8, processing according to the bacteria type detection result of the palm part to be cleaned:

when the detected bacteria type is in the preset bacteria type list, the step 9 is carried out; otherwise, go to step 10;

step 9, controlling the hand sanitizer machine to output foaming liquid which is matched with the skin type of the palm part to be cleaned of the child user and can kill the bacteria type;

step 10, detecting the degree of contamination of the palm part to be cleaned of the child user, and turning to step 11; in the step 10, the degree of contamination of the palm part to be cleaned, which is required by the child user, is detected according to the following steps b 1-b 3:

b1, detecting the area of the palm to be cleaned under the water flow output end of the hand sanitizer machine;

step b2, detecting the area of the palm part which is positioned on the palm to be cleaned and has the pollutants, and taking the detected area as the pollution area of the palm to be cleaned;

step b3, calculating the ratio of the area of the palm to be cleaned and the area of the palm to be cleaned, and taking the ratio as the degree of contamination of the palm to be cleaned;

step 11, processing according to the detection result of the pollution degree of the palm part to be cleaned:

when the pollution degree of the palm part to be cleaned is greater than a preset pollution degree threshold value, turning to step 12; otherwise, go to step 13;

step 12, controlling the hand sanitizer machine to output foaming liquid matched with the skin type of the palm part to be cleaned of the child user according to the maximum preset foaming liquid output;

and step 13, controlling the hand sanitizer machine to output foaming liquid matched with the skin type of the palm part to be cleaned of the child user according to the minimum preset foaming liquid output quantity.

2. The method for automatically foaming and dispensing a simple children hand sanitizer according to claim 1, wherein the steps of 9, 12 and 13 are respectively performed after the hand sanitizer is controlled to output the foaming liquid, and the method further comprises:

detecting the temperature value of the palm part to be cleaned of the child user and the current environment temperature value of the hand sanitizer machine, and calculating the temperature difference value between the temperature value of the palm part to be cleaned and the current environment temperature value;

controlling the temperature of the water flow to be flowed out of the hand sanitizer machine to be adjusted to the optimal comfortable water temperature according to the temperature value of the palm part to be cleaned of the child user and the calculated temperature difference value;

controlling to output the water flow adjusted to the optimal comfortable water temperature to the palm part to be cleaned of the child user;

and stopping the water flow output after the water flow output time with the optimal comfortable water temperature reaches the preset water flow output time.

3. The method for automatically foaming and dispensing a simple children hand sanitizer according to claim 2, wherein before controlling the adjusted water flow to be output to the palm of a user to be cleaned, the method further comprises:

detecting the height of a child user;

adjusting the water flow output end of the hand sanitizer machine to move to the optimal position matched with the height of the child user according to the height of the child user; wherein the optimal position is one half of the height value of the child user.

4. The method for automatically foaming and dispensing a simple children hand sanitizer according to any one of claims 1 to 3, wherein in step 1, whether a child user is present in front of the hand sanitizer is detected as follows in steps S1 to S4:

step S1, acquiring facial images of persons located in a preset distance range right in front of the liquid soap dispenser;

step S2, acquiring the face infrared data and height of the person;

step S3, judging according to the acquired face image and face infrared data of the person:

when the face image is a portrait and the infrared data of the face is within a preset infrared data threshold range, the step S4 is executed; otherwise, judging the person as a non-child user;

step S4, judging according to the obtained height of the person:

when the height of the person is smaller than a preset height value, the person is judged to be a child user; otherwise, the person is judged to be a non-child user.

5. The method for automatically foaming and dispensing a simple children hand sanitizer according to claim 4, wherein the preset time period in the step 2 is 8s, and the preset pollution degree threshold value in the step 11 is 20%.

6. The automatic foaming and dispensing method of the simple children hand sanitizer according to claim 5, wherein in step 5, the hand washing intention of the children user is identified according to the following steps a 1-a 5:

step a1, the liquid soap dispenser obtains the bending inclination angle value of the child user in a first preset collection time period according to a first preset collection time interval, and a bending inclination angle set representing the child user is formed; wherein the first preset acquisition time interval is marked as DeltaT₁The first preset acquisition time period is marked as T₁The bending inclination angle set of the child user is marked as theta, and the ith bending inclination angle value in the bending inclination angle set of the child user is marked as theta_i，θ＝{θ_i}，1≤i≤I，△T₁>0, I is the first preset acquisition time period T of the liquid soap machine₁Total number of bending and tilting angle values collected in the database;

a2, acquiring a palm moving speed average value of a child user's palm moving to the hand sanitizer output end within a first preset acquisition time period by the hand sanitizer machine; wherein, the average value of the palm moving speed of the child user is marked as v;

step a3, the liquid soap dispenser acquires palm inclination angle values of palms of the child users in a second preset acquisition time period according to a second preset acquisition time interval, and forms a palm inclination angle set representing the palm inclination degrees of the child users; wherein the second isThe preset acquisition time interval is marked as DeltaT₂And the second preset acquisition time period is marked as T₂Palm tilt angle set of palm tilt degrees of child user is marked asPalm tilt angle set for child userThe jth palm tilt angle value in 1≤j≤J，△T₂>0, J is the second preset acquisition time period T of the liquid soap machine₂The total number of palm tilt angle values of the child user collected;

step a4, the hand sanitizer obtains a hand washing desire index representing a child user according to the waist bending inclination angle set, the palm inclination angle set and the palm moving speed average value; wherein the child user's handwash willingness index is marked as ψ:

step a5, the liquid soap dispenser makes judgment processing according to the hand washing willingness index of the child user:

when the hand washing intention index of the child user is larger than the preset hand washing intention index threshold value, the hand washing liquid machine judges the hand washing intention of the child user as needing to wash hands; otherwise, the liquid soap machine judges that the hand washing intention of the child user is that hand washing is not needed.

7. The automatic foaming and dispensing method for the simple children hand sanitizer according to claim 6, wherein the temperature of the water to be discharged in the hand sanitizer is adjusted to the optimal comfortable water temperature as follows:

wherein, C_Water,optThe optimal comfortable water temperature after the water temperature of the water flow to be flowed out of the hand sanitizer machine is adjusted C_HandThe temperature value of the palm part to be cleaned is obtained, and deltaC is the temperature difference value.

Technical Field

The invention relates to the field of liquid soap machines, in particular to a simple automatic foaming liquid discharging method of a child liquid soap.

Background

Liquid soap dispensers are increasingly popular with people, and many public places have different types of liquid soap dispensers installed. The hand sanitizer machine automatically controls the output of the hand sanitizer and water, so that a user can keep hands clean and sanitary, and respiratory tract and intestinal tract diseases are reduced.

However, the existing hand sanitizer machines have some problems: the existing liquid soap dispenser is not specially designed for special groups such as children, so that palm skin of the children cannot be effectively protected by the existing liquid soap dispenser, and hand washing cleaning effects of the children cannot be influenced by self-adaptive foaming liquid dispensing requirements of different types of bacteria on palms of the children.

Disclosure of Invention

The invention aims to solve the technical problem of providing a simple automatic foaming liquid outlet method of a child hand sanitizer in view of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a simple automatic foaming liquid discharging method of a child hand sanitizer is characterized by comprising the following steps of 1-13:

step 1, detecting whether a child user exists in front of a liquid soap dispenser;

step 2, judging and processing according to the detection result:

when a child user exists, turning to the step 3; otherwise, after the detection is suspended for a preset time period, the step 1 is switched to;

step 3, detecting the emotional state of the child user, and turning to step 4;

and 4, processing according to the emotion state detection result of the child user:

when the emotional state of the child user is not excited, turning to step 5; otherwise, after the hand sanitizer plays the video for relieving the current excited emotion of the child user, the step 3 is carried out;

step 5, recognizing the hand washing intention of the child user, and turning to step 6;

step 6, processing is carried out according to the hand washing intention recognition result of the child user:

when the children user wants to wash hands, the process goes to step 7; otherwise, turning to the step 1;

step 7, detecting the bacteria type and the skin type of the palm part to be cleaned of the child user, and turning to step 8;

step 8, processing according to the bacteria type detection result of the palm part to be cleaned:

when the detected bacteria type is in the preset bacteria type list, the step 9 is carried out; otherwise, go to step 10;

step 9, controlling the hand sanitizer machine to output foaming liquid which is matched with the skin type of the palm part to be cleaned of the child user and can kill the bacteria type;

step 10, detecting the degree of contamination of the palm part to be cleaned of the child user, and turning to step 11;

step 11, processing according to the detection result of the pollution degree of the palm part to be cleaned:

when the pollution degree of the palm part to be cleaned is greater than a preset pollution degree threshold value, turning to step 12; otherwise, go to step 13;

step 12, controlling the hand sanitizer machine to output foaming liquid matched with the skin type of the palm part to be cleaned of the child user according to the maximum preset foaming liquid output;

and step 13, controlling the hand sanitizer machine to output foaming liquid matched with the skin type of the palm part to be cleaned of the child user according to the minimum preset foaming liquid output quantity.

In an improved manner, in the simple automatic foaming and dispensing method for a child hand sanitizer, after the step 9, the step 12, and the step 13 respectively control the hand sanitizer machine to output the foaming liquid, the method further includes:

detecting the temperature value of the palm part to be cleaned of the child user and the current environment temperature value of the hand sanitizer machine, and calculating the temperature difference value between the temperature value of the palm part to be cleaned and the current environment temperature value;

controlling the temperature of the water flow to be flowed out of the hand sanitizer machine to be adjusted to the optimal comfortable water temperature according to the temperature value of the palm part to be cleaned of the child user and the calculated temperature difference value;

controlling to output the water flow adjusted to the optimal comfortable water temperature to the palm part to be cleaned of the child user;

and stopping the water flow output after the water flow output time with the optimal comfortable water temperature reaches the preset water flow output time.

Specifically, the water temperature of the water flow to be flowed out of the hand sanitizer machine is adjusted to the optimal comfortable water temperature according to the following modes:

wherein, C_Water,optThe optimal comfortable water temperature after the water temperature of the water flow to be flowed out of the hand sanitizer machine is adjusted C_HandAnd delta C is the temperature difference value of the palm part to be cleaned.

Further, in the method for automatically foaming and dispensing the simple child hand sanitizer, before controlling the adjusted water flow to be output to a palm part to be cleaned of a child user, the method further comprises:

detecting the height of a child user;

adjusting the water flow output end of the hand sanitizer machine to move to the optimal position matched with the height of the child user according to the height of the child user; wherein the optimal position is one half of the height value of the child user.

In a further improvement, in the method for automatically foaming and dispensing the simple child hand sanitizer, in step 1, whether a child user is present in front of the hand sanitizer is detected as follows in steps S1 to S4:

step S1, acquiring facial images of persons located in a preset distance range right in front of the liquid soap dispenser;

step S2, acquiring the face infrared data and height of the person;

step S3, judging according to the acquired face image and face infrared data of the person:

when the face image is a portrait and the infrared data of the face is within a preset infrared data threshold range, the step S4 is executed; otherwise, judging the person as a non-child user;

step S4, judging according to the obtained height of the person:

when the height of the person is smaller than a preset height value, the person is judged to be a child user; otherwise, the person is judged to be a non-child user.

Preferably, in the automatic foaming and dispensing method of the simple child hand sanitizer, the preset time period in the step 2 is 8 s.

Still further, in the automatic foaming and dispensing method of the simple child hand sanitizer, in step 5, the hand washing intention of the child user is identified according to the following steps a 1-a 5:

step a1, the liquid soap dispenser obtains the bending inclination angle value of the child user in a first preset collection time period according to a first preset collection time interval, and a bending inclination angle set representing the child user is formed; wherein the first preset acquisition time interval is marked as Δ T₁The first preset acquisition time period is marked as T₁The bending inclination angle set of the child user is marked as theta, and the ith bending inclination angle value in the bending inclination angle set of the child user is marked as theta_i，θ＝{θ_i}，1≤i≤I，ΔT₁>0, I is the first preset acquisition time period T of the liquid soap machine₁Total number of bending and tilting angle values collected in the database;

a2, acquiring a palm moving speed average value of a child user's palm moving to the hand sanitizer output end within a first preset acquisition time period by the hand sanitizer machine; wherein, the average value of the palm moving speed of the child user is marked as v;

step a3, the liquid soap dispenser acquires palm inclination angle values of palms of the child users in a second preset acquisition time period according to a second preset acquisition time interval, and forms a palm inclination angle set representing the palm inclination degrees of the child users; wherein the second preset acquisition time interval is marked as Δ T₂And the second preset acquisition time period is marked as T₂Palm tilt angle set of palm tilt degrees of child user is marked asPalm tilt angle set for child userThe jth palm tilt angle value in1≤j≤J，ΔT₂>0, J is the second preset acquisition time period T of the liquid soap machine₂The total number of palm tilt angle values of the child user collected;

step a4, the hand sanitizer obtains a hand washing desire index representing a child user according to the waist bending inclination angle set, the palm inclination angle set and the palm moving speed average value; wherein, children user's washing will index mark is y:

step a5, the liquid soap dispenser makes judgment processing according to the hand washing willingness index of the child user:

when the hand washing intention index of the child user is larger than the preset hand washing intention index threshold value, the hand washing liquid machine judges the hand washing intention of the child user as needing to wash hands; otherwise, the liquid soap machine judges that the hand washing intention of the child user is that hand washing is not needed.

Further, in the simple automatic child hand sanitizer foaming and dispensing method, the first preset acquisition time interval delta T₁0.01s, the first preset acquisition period T₁5 s; the second preset acquisition time interval Δ T₂0.005s, the second preset acquisition period T₁＝10s，The preset hand washing willingness index threshold value is 0.55.

In a further improvement, in the automatic foaming and dispensing method of the simple child hand sanitizer, in step 10, the degree of contamination of the palm part to be cleaned of the child user is detected according to the following steps b 1-b 3:

b1, detecting the area of the palm to be cleaned under the water flow output end of the hand sanitizer machine;

step b2, detecting the area of the palm part which is positioned on the palm to be cleaned and has the pollutants, and taking the detected area as the pollution area of the palm to be cleaned;

and b3, calculating the ratio of the area of the palm to be cleaned with dirt to the area of the palm to be cleaned, and taking the ratio as the dirt degree of the palm to be cleaned.

In another improvement, in the automatic foaming and dispensing method of the simple children hand sanitizer, the preset contamination degree threshold is 20%.

Compared with the prior art, the invention has the advantages that:

firstly, when the child user is determined to be in front of the liquid soap dispenser, the current emotional state of the child user is detected, whether the child user has a hand washing intention is identified after the emotional state of the child user is determined, the bacterial type and the skin type of the palm part to be washed of the child user and the pollution degree of the palm part to be washed are detected when the child user needs to wash hands, and the liquid soap dispenser automatically outputs the foaming liquid which is matched with the current palm skin type to be washed of the child user and kills the bacterial type on the palm, so that the hand washing cleaning needs of the child user are facilitated, the palm skin of the child user is protected, and the palm skin of the child user is prevented from being damaged by the non-matched foaming liquid.

In addition, the simple automatic foaming and liquid discharging method for the child hand sanitizer can process the hand washing intention index representing the child user according to the waist bending inclination angle set of the child user, the palm moving speed average value of the palm of the user moving to the hand sanitizer output end and the palm inclination angle set, and then judge whether the child user in front of the hand sanitizer has the hand washing intention at present according to the comparison between the obtained hand washing intention index and a preset hand washing intention index threshold value, so that the effect of comprehensively judging the hand washing intention of the child based on a plurality of posture factors of the child user is realized, and the hand washing intention of the child is accurately judged.

Drawings

Fig. 1 is a schematic flow chart of a simple automatic foaming and dispensing method of a child hand sanitizer in an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The embodiment provides a simple automatic foaming and liquid discharging method of a child hand sanitizer. Referring to fig. 1, the simple automatic foaming and dispensing method of the child hand sanitizer comprises the following steps 1 to 13:

step 1, detecting whether a child user exists in front of a liquid soap dispenser; in the embodiment, whether a child user exists in front of the liquid soap dispenser is detected in the following steps S1-S4:

step S1, acquiring facial images of persons located in a preset distance range right in front of the liquid soap dispenser;

step S2, acquiring the face infrared data and height of the person;

step S3, judging according to the acquired face image and face infrared data of the person:

when the face image is a portrait and the infrared data of the face is within a preset infrared data threshold range, the step S4 is executed; otherwise, judging the person as a non-child user;

step S4, judging according to the obtained height of the person:

when the height of the person is smaller than a preset height value, the person is judged to be a child user; otherwise, judging the person as a non-child user; for example, the preset height value here may be set to 100 cm;

step 2, judging and processing according to the detection result:

when a child user exists, turning to the step 3; otherwise, after the detection is suspended for a preset time period, the step 1 is switched to; wherein the preset time period here is set to 8 s;

step 3, detecting the emotional state of the child user, and turning to step 4; the detection of the emotional state of the child user can be realized by using the existing conventional technical means such as facial expression recognition, and the details are not repeated herein;

and 4, processing according to the emotion state detection result of the child user:

when the emotional state of the child user is not excited, turning to step 5; otherwise, after the hand sanitizer plays the video for relieving the current excited emotion of the child user, the step 3 is carried out;

step 5, recognizing the hand washing intention of the child user, and turning to step 6; wherein, the embodiment identifies the hand washing intention of the child user according to the following steps a 1-a 5:

step a1, the liquid soap dispenser obtains the bending inclination angle value of the child user in a first preset collection time period according to a first preset collection time interval, and a bending inclination angle set representing the child user is formed; wherein the first preset acquisition time interval is marked as Δ T₁The first preset acquisition time period is marked as T₁The bending inclination angle set of the child user is marked as theta, and the ith bending inclination angle value in the bending inclination angle set of the child user is marked as theta_i，θ＝{θ_i}，1≤i≤I，ΔT₁>0, I is the first preset acquisition time period T of the liquid soap machine₁Total number of bending and tilting angle values collected in the database; here a first preset acquisition time interval deltat₁0.01s, a first preset acquisition period T₁＝5s；

A2, acquiring a palm moving speed average value of a child user's palm moving to the hand sanitizer output end within a first preset acquisition time period by the hand sanitizer machine; wherein, the average value of the palm moving speed of the child user is marked as v;

step a3, the liquid soap dispenser acquires palm inclination angle values of palms of the child users in a second preset acquisition time period according to a second preset acquisition time interval, and forms a palm inclination angle set representing the palm inclination degrees of the child users; wherein the second preset acquisition time interval is marked as Δ T₂And the second preset acquisition time period is marked as T₂Palm tilt angle set of palm tilt degrees of child user is marked asPalm tilt angle set for child userThe jth palm tilt angle value in 1≤j≤J，ΔT₂>0, J is the second preset acquisition time period T of the liquid soap machine₂The total number of palm tilt angle values of the child user collected; wherein here the second preset acquisition time interval Δ T₂0.005s, second preset acquisition period T₂Is 10 s;

step a4, the hand sanitizer obtains a hand washing desire index representing a child user according to the waist bending inclination angle set, the palm inclination angle set and the palm moving speed average value; wherein, children user's washing will index mark is y:

step a5, the liquid soap dispenser makes judgment processing according to the hand washing willingness index of the child user:

when the hand washing intention index of the child user is larger than the preset hand washing intention index threshold value, the hand washing liquid machine judges the hand washing intention of the child user as needing to wash hands; otherwise, the liquid soap machine judges that the hand washing intention of the child user is that hand washing is not needed; wherein, the preset hand washing willingness index threshold value is 0.55;

step 6, processing is carried out according to the hand washing intention recognition result of the child user:

when the children user wants to wash hands, the process goes to step 7; otherwise, turning to the step 1;

step 7, detecting the bacteria type and the skin type of the palm part to be cleaned of the child user, and turning to step 8;

step 8, processing according to the bacteria type detection result of the palm part to be cleaned:

when the detected bacteria type is in the preset bacteria type list, it indicates that harmful bacteria which need to be killed exist on the palm part to be cleaned of the child user, and then the step 9 is carried out; otherwise, go to step 10;

step 9, controlling the hand sanitizer machine to output foaming liquid which is matched with the skin type of the palm part to be cleaned of the child user and can kill the bacteria type; for example, the output amount of the foaming liquid outputted in step 9 may be controlled to 6 mL;

step 10, detecting the degree of contamination of the palm part to be cleaned of the child user, and turning to step 11; in the step 10, the degree of contamination of the palm part to be cleaned, which is required by the child user, is detected according to the following steps b 1-b 3:

b1, detecting the area of the palm to be cleaned under the water flow output end of the hand sanitizer machine;

step b2, detecting the area of the palm part which is positioned on the palm to be cleaned and has the pollutants, and taking the detected area as the pollution area of the palm to be cleaned;

step b3, calculating the ratio of the area of the palm to be cleaned and the area of the palm to be cleaned, and taking the ratio as the degree of contamination of the palm to be cleaned;

step 11, processing according to the detection result of the pollution degree of the palm part to be cleaned:

when the pollution degree of the palm part to be cleaned is greater than a preset pollution degree threshold value, turning to step 12; otherwise, go to step 13; the preset pollution degree threshold value is 20 percent;

step 12, controlling the hand sanitizer machine to output foaming liquid matched with the skin type of the palm part to be cleaned of the child user according to the maximum preset foaming liquid output; the maximum preset foaming liquid output is 10 mL;

and step 13, controlling the hand sanitizer machine to output foaming liquid matched with the skin type of the palm part to be cleaned of the child user according to the minimum preset foaming liquid output quantity. Wherein the minimum preset foaming liquid output is 5 mL.

Of course, in order to improve the comfort of the child user for further cleaning the palm portion coated with the foaming liquid after the child user uses the foaming liquid outputted from the hand washing machine to absorb the foaming liquid, in this embodiment, the method further includes the following steps after the step 9, the step 12 and the step 13 respectively control the hand washing machine to output the foaming liquid:

detecting the temperature value of the palm part to be cleaned of the child user and the current environment temperature value of the hand sanitizer machine, and calculating the temperature difference value between the temperature value of the palm part to be cleaned and the current environment temperature value;

controlling the temperature of the water flow to be flowed out of the hand sanitizer machine to be adjusted to the optimal comfortable water temperature according to the temperature value of the palm part to be cleaned of the child user and the calculated temperature difference value;

controlling to output the water flow adjusted to the optimal comfortable water temperature to the palm part to be cleaned of the child user;

and maintaining a flow of water having an optimal comfortable water temperatureAnd stopping the output of the water flow after the output time reaches the preset water flow output time. Wherein, the temperature of the water to flow out of the hand sanitizer machine of the embodiment is adjusted to the optimal comfortable water temperature as follows:wherein, C_Water,optThe optimal comfortable water temperature after the water temperature of the water flow to be flowed out of the hand sanitizer machine is adjusted C_HandAnd delta C is the temperature difference value of the palm part to be cleaned.

Certainly, in order to facilitate the child user to more easily and comfortably receive the water flow for washing the palm, which is output by the liquid soap washing machine, as an improvement, the embodiment also detects the height of the child user before controlling the adjusted water flow to be output to the palm part of the child user to be washed; adjusting the water flow output end of the hand sanitizer machine to move to the optimal position matched with the height of the child user according to the height of the child user; wherein the optimal position is one half of the height value of the child user.

It should be noted that, in the embodiment, when it is determined that a child user is present in front of the liquid soap dispenser, the current emotional state of the child user is detected, and after the emotional state of the child user is determined, whether the child user has a hand washing desire is identified, and when it is determined that the child user needs to wash hands, the bacteria type, the skin type and the pollution degree of the palm part to be washed of the child user are detected, so that the liquid soap dispenser automatically outputs the foaming liquid which is matched with the current skin type of the palm to be washed of the child user and kills the bacteria type on the palm, so as to facilitate the hand washing cleaning needs of the child user. Moreover, the simple automatic child liquid soap foaming and dispensing method of the embodiment further includes processing to obtain a hand washing intention index representing the child user according to a bending inclination angle set of the child user, a palm moving speed average value of a palm of the user moving to the liquid soap output end and a palm inclination angle set, and then judging whether the child user in front of the liquid soap dispenser has a hand washing intention at present according to comparison between the obtained hand washing intention index and a preset hand washing intention index threshold value, so that comprehensive judgment based on multiple posture factors of the child user is achieved, and the effect of accurately judging the hand washing intention of the child is achieved.

Although preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.