阅读说明：本技术 浴缸表面积水检测方法、系统、设备及介质 (Method, system, equipment and medium for detecting accumulated water on surface of bathtub ) 是由 刘达 易鹏 刘汝发 庞桂双 于 2021-07-29 设计创作，主要内容包括：本发明涉及浴缸表面检测技术领域,尤其是一种浴缸表面积水检测方法、系统、设备及介质。该方法包括：对浴缸内表面底部进行连续的数据采集,得到离散的高度数据；将所述高度数据按照检测区域的位置顺序存储到对应的数据列表中,检测并修正异常数据；对消除异常数据后的高度数据进行滤波处理；比较待检测高度数据与其所有的相邻高度数据,标记小于所有相邻高度数据的待检测高度数据。本发明通过光学检测和数据分析比较,对浴缸表面各个位置的高度数据进行采集以及比较,筛查浴缸表面可能引起积水的区域,在生产过程中发现可能引起积水的浴缸,提高浴缸出厂质量以及用户的使用体验感。(The invention relates to the technical field of bathtub surface detection, in particular to a method, a system, equipment and a medium for detecting accumulated water on the surface of a bathtub. The method comprises the following steps: continuously acquiring data of the bottom of the inner surface of the bathtub to obtain discrete height data; storing the height data into a corresponding data list according to the position sequence of the detection area, and detecting and correcting abnormal data; filtering the height data after abnormal data are eliminated; and comparing the height data to be detected with all the adjacent height data, and marking the height data to be detected which is smaller than all the adjacent height data. According to the invention, through optical detection and data analysis and comparison, height data of each position on the surface of the bathtub is collected and compared, an area which possibly causes water accumulation on the surface of the bathtub is screened, the bathtub which possibly causes water accumulation is found in the production process, and the delivery quality of the bathtub and the use experience of a user are improved.)

1. A method for detecting water accumulated on the surface of a bathtub is characterized by comprising the following steps:

continuously acquiring data of the bottom of the inner surface of the bathtub to obtain discrete height data;

storing the height data into a corresponding data list according to the position sequence of the detection area, and detecting and correcting abnormal data;

filtering the height data after abnormal data are eliminated;

and comparing the height data to be detected with all the adjacent height data, and marking the height data to be detected which is smaller than all the adjacent height data.

2. The method of claim 1, wherein the continuous data acquisition of the bottom of the inner surface of the bathtub to obtain discrete height data comprises:

establishing a tool coordinate system and a user coordinate system, and setting a motion track and a sampling interval;

controlling the mechanical arm to move above the bottom of the inner surface of the bathtub along the motion track;

controlling a laser displacement sensor to perform height data acquisition on a sampling point on the inner surface of the bathtub when moving a sampling interval; each sampling point forms a rectangular lattice.

3. The method for detecting standing water on the surface of a bathtub according to claim 1, wherein the step of storing the height data in a corresponding data list according to the position sequence of the detection area, and detecting and correcting abnormal data comprises the steps of:

performing difference operation on two adjacent height data, comparing the difference of the two adjacent height data with a gradient threshold, and replacing the latter height data with the corrected height data when the difference is greater than the gradient threshold;

the corrected altitude data is (previous altitude data + gradient threshold) x k;

calculating the proportion of the difference value larger than the gradient threshold value, and alarming when the proportion of the difference value larger than the gradient threshold value exceeds y;

where k is a scaling factor, k is [0.6, 0.9], y is a scaling threshold, and y is [ 2%, 10% ].

4. The method for detecting water accumulated on the surface of the bathtub according to claim 1, wherein the filtering processing of the height data after abnormal data elimination comprises:

filtering the height data after the abnormal data is eliminated by adopting an average filtering method, wherein the average filtering formula is as follows:

wherein g (i, j) is height data after filtering, f (i + k, j + l) is height data before filtering, and h (k, l) is a domain operator.

5. The method for detecting standing water on the surface of a bathtub according to claim 1, wherein said comparing the height data to be detected with all of the adjacent height data thereof and marking the height data to be detected that is less than all of the adjacent height data comprises:

identifying a data position of the first height data to be detected;

the first height data to be detected comprises height data;

intercepting the first height data to be detected by using a data window, so that the first height data to be detected and all adjacent height data thereof are in the intercepting range of the data window;

and comparing the first height data to be detected with all the adjacent height data, and marking the first height data to be detected smaller than all the adjacent height data as ponding area data.

6. The method of detecting standing water on the surface of a bathtub according to claim 5, wherein said comparing the height data to be detected with all of its neighboring height data and marking the height data to be detected that is less than all of the neighboring height data further comprises:

identifying the data position of the second height data to be detected;

the second height data to be detected comprises first height data to be detected and all adjacent height data smaller than the first height data to be detected;

intercepting the second height data to be detected by using the data window, so that the second height data to be detected and all adjacent height data thereof are in the intercepting range of the data window;

and comparing the second height data to be detected with all the adjacent height data, and marking the second height data to be detected smaller than all the adjacent height data as ponding area data.

7. The method according to claim 5 or 6, wherein the comparing of the height data to be detected with all the adjacent height data thereof and the marking of the height data to be detected which is smaller than all the adjacent height data further comprises:

and sending the marked ponding region data to a data memory, and displaying the marked ponding region data.

8. A bathtub surface water detection system, comprising:

the sampling module is used for continuously acquiring data of the bottom of the inner surface of the bathtub to obtain discrete height data;

the preprocessing module stores the height data into a corresponding data list according to the position sequence of the detection area, and detects and corrects abnormal data;

the filtering module is used for filtering the height data after the abnormal data are eliminated;

and the comparison module is used for comparing the height data to be detected with all the adjacent height data and marking the height data to be detected which is smaller than all the adjacent height data.

9. A computer device, comprising:

a memory storing a computer program;

a processor which, when executing the computer program, carries out a method of detecting water buildup on a surface of a bathtub according to any one of claims 1 to 8.

10. A computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements a method of detecting standing water in a bathtub according to any of claims 1-8.

Technical Field

The invention relates to the technical field of bathtub surface detection, in particular to a method, a system, equipment and a medium for detecting accumulated water on the surface of a bathtub.

Background

A bath is a sanitary fixture for bathing or showering, typically in a domestic bathroom. In order to meet the pursuit of people on the personalized life, the shape design of the bathtub becomes diversified, but for the usability of the bathtub, a designer usually designs the inner surface of the bathtub into a smooth surface to avoid the water accumulation remained at the local part of the inner surface after the bathtub is used. However, even if the inner surface of the bathtub is designed to be smooth as much as possible, local depressions on the inner surface of the bathtub are still caused by production process errors during batch production, the local depressions are difficult to detect by naked eyes, and bacteria are easy to breed due to the fact that water is remained on the local inner surface of the bathtub during daily use, so that health is affected.

Disclosure of Invention

The present invention is directed to a method, system, apparatus, and medium for detecting water accumulated on a surface of a bathtub, which solves one or more of the problems of the prior art, and provides at least one of the advantages of the method, system, apparatus, and medium.

In a first aspect, a method for detecting water accumulated on the surface of a bathtub is provided, which includes:

continuously acquiring data of the bottom of the inner surface of the bathtub to obtain discrete height data;

storing the height data into a corresponding data list according to the position sequence of the detection area, and detecting and correcting abnormal data;

filtering the height data after abnormal data are eliminated;

and comparing the height data to be detected with all the adjacent height data, and marking the height data to be detected which is smaller than all the adjacent height data.

Further, the continuous data acquisition of the bottom of the inner surface of the bathtub to obtain discrete height data comprises:

establishing a tool coordinate system and a user coordinate system, and setting a motion track and a sampling interval;

controlling the mechanical arm to move above the inner surface of the bathtub along the motion track;

controlling a laser displacement sensor to perform height data acquisition on a sampling point on the inner surface of the bathtub when moving a sampling interval; each sampling point forms a rectangular lattice.

Further, the storing the height data into a corresponding data list according to the position sequence of the detection area, and detecting and correcting abnormal data includes:

performing difference operation on two adjacent height data, comparing the difference of the two adjacent height data with a gradient threshold, and replacing the latter height data with the corrected height data when the difference is greater than the gradient threshold;

the corrected altitude data is (previous altitude data + gradient threshold) x k;

calculating the proportion of the difference value larger than the gradient threshold value, and alarming when the proportion of the difference value larger than the gradient threshold value exceeds y;

where k is a scaling factor, k is [0.6, 0.9], y is a scaling threshold, and y is [ 2%, 10% ].

Further, the filtering processing of the height data after the abnormal data is removed includes:

filtering the height data after the abnormal data is eliminated by adopting an average filtering method, wherein the average filtering formula is as follows:

wherein g (i, j) is height data after filtering, f (i + k, j + l) is height data before filtering, and h (k, l) is a domain operator.

Further, the comparing the height data to be detected with all the adjacent height data thereof and marking the height data to be detected smaller than all the adjacent height data includes:

identifying a data position of the first height data to be detected;

the first height data to be detected comprises height data;

intercepting the first height data to be detected by using a data window, so that the first height data to be detected and all adjacent height data thereof are in the intercepting range of the data window;

and comparing the first height data to be detected with all the adjacent height data, and marking the first height data to be detected smaller than all the adjacent height data as ponding area data.

Further, the comparing the height data to be detected with all the adjacent height data thereof, and marking the height data to be detected smaller than all the adjacent height data, further includes:

identifying the data position of the second height data to be detected;

the second height data to be detected comprises first height data to be detected and all adjacent height data smaller than the first height data to be detected;

intercepting the second height data to be detected by using the data window, so that the second height data to be detected and all adjacent height data thereof are in the intercepting range of the data window;

and comparing the second height data to be detected with all the adjacent height data, and marking the second height data to be detected smaller than all the adjacent height data as ponding area data.

Further, comparing the height data to be detected with all the adjacent height data, and marking the height data to be detected smaller than all the adjacent height data, the method further comprises:

and sending the marked ponding region data to a data memory, and displaying the marked ponding region data.

In a second aspect, a system for detecting water accumulated on the surface of a bathtub is provided, which comprises:

the sampling module is used for continuously acquiring data of the bottom of the inner surface of the bathtub to obtain discrete height data;

the preprocessing module stores the height data into a corresponding data list according to the position sequence of the detection area, and detects and corrects abnormal data;

the filtering module is used for filtering the height data after the abnormal data are eliminated;

and the comparison module is used for comparing the height data to be detected with all the adjacent height data and marking the height data to be detected which is smaller than all the adjacent height data.

In a third aspect, a computer device is provided, comprising:

a memory storing a computer program;

a processor which, when executing the computer program, implements the method for detecting standing water on the surface of a bathtub according to the first aspect.

In a fourth aspect, there is provided a computer storage medium having a computer program stored thereon, the computer program, when executed by a processor, implementing the method of detecting standing water on a surface of a bathtub of the first aspect.

The invention has the beneficial effects that: through optical detection and data analysis comparison, the height data of each position of the surface of the bathtub are collected and compared, the area of accumulated water possibly caused by the surface of the bathtub is screened, the bathtub with the accumulated water possibly caused is found in the production process, and the factory quality of the bathtub and the use experience of a user are improved.

Drawings

FIG. 1 is a flow chart illustrating a method for detecting water buildup on a surface of a bathtub, according to one embodiment.

Fig. 2 is a functional block diagram of a filtering process for the height data.

FIG. 3 is a flow diagram illustrating a method of collecting bathtub height data according to one embodiment.

Fig. 4 is a schematic diagram of the motion trajectory of the robot and the distribution of the acquisition point positions.

FIG. 5 is a flow diagram illustrating a method of detecting and correcting anomalous data in accordance with one embodiment.

Fig. 6 is a flowchart illustrating a method of comparing height data to be detected with all of its neighboring height data according to the first embodiment.

Fig. 7 is a schematic diagram of intercepting the height data to be detected at the intermediate position using a data window.

Fig. 8 is a flowchart showing a method of comparing height data to be detected with all of its neighboring height data according to the second embodiment.

FIG. 9 is a block diagram of a bathtub surface water detection system, according to one embodiment.

FIG. 10 is an internal block diagram of a computer device, according to one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be further described with reference to the embodiments and the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

According to a first aspect of the invention, a method for detecting water accumulated on the surface of a bathtub is provided.

Referring to fig. 1, fig. 1 is a flowchart illustrating a method for detecting water accumulated on a surface of a bathtub according to an embodiment. As shown in fig. 1, the method includes steps S100 to S400.

And step S100, continuously acquiring data of the bottom of the inner surface of the bathtub to obtain discrete height data.

Specifically, the height data is a parameter representing the height of the corresponding position at the bottom of the inner surface of the bathtub. Understandably, the magnitude of the difference between two or more adjacent height data reflects the degree of smoothness and inclination of the bottom of the interior surface of the bathtub, and typically the bottom of the interior surface of the bathtub is of a sloped configuration with a general slope directed toward the drain opening to prevent the bathtub from failing to completely drain after use, or otherwise creating standing water if a localized position of the bottom of the interior surface of the bathtub is depressed relative to its adjacent position. In this embodiment, a laser displacement sensor is used to continuously acquire data from the inner surface of the bathtub, so as to obtain multiple sets of discrete height data.

It can be understood that, in the scheme of this embodiment, the height data of the bottom of the inner surface of the bathtub can be obtained by setting a preset track as a sampling track, the laser displacement sensor moves along the preset track to continuously acquire the height data, and the acquired height data is transmitted to the next stage to be processed and analyzed, so as to obtain the height data of the bottom of the inner surface of the bathtub.

And step S200, storing the height data into a corresponding data list according to the position sequence of the detection area, and detecting and correcting abnormal data.

Specifically, the data list is generated by simulating the positions of the acquisition points of the sets of height data, and the position of each acquisition point corresponding to the bottom of the inner surface of the bathtub can be represented in the data list. Illustratively, the laser displacement sensor moves transversely, and respectively carries out height data acquisition on a plurality of transverse acquisition points, and the obtained height data are transversely arranged in a data list according to the acquisition sequence.

In the scheme of this embodiment, in order to accurately detect whether ponding is likely to occur in each position of the bottom of the inner surface of the bathtub, the movement track of the laser displacement sensor covers most of the area of the bottom of the inner surface of the bathtub, height data acquisition is performed once every certain distance, the intervals of the acquisition points are approximately the same, and the acquisition points can form a rectangular dot matrix.

The detection and correction of abnormal data belongs to a preprocessing mechanism for the height data obtained by the detection, with the aim of eliminating the abnormal data by the detection and correction. It can be understood that when certain height data exceeds a preset threshold range, the certain height data is determined to be abnormal data, and the abnormal data may be height abnormality of a corresponding acquisition point or acquisition abnormality of a laser displacement sensor. In the scheme of the embodiment, abnormal data is determined and corrected according to the preset gradient between two acquisition points, and the abnormal data is replaced by data within a reasonable preset gradient range by correcting the abnormal data based on the acquisition points adjacent to the abnormal data and the preset gradient.

Step S300, filtering the height data after the abnormal data is removed.

The purpose of the filtering processing is to make the height data smoother as a whole, reduce the occurrence of jump-type numerical values in the height data and facilitate the subsequent modeling of the bottom of the inner surface of the bathtub.

In one embodiment, the height data after the abnormal data is removed is filtered by using a mean filtering method, where the mean filtering formula is as follows:

wherein g (i, j) is height data after filtering, f (i + k, j + l) is height data before filtering, and h (k, l) is a domain operator.

As shown in fig. 2, in the process of the mean filtering, a 3 × 3 domain operator window may be used to perform the mean filtering, and after the height data to be filtered and the adjacent height data around the height data to be filtered are averaged, the average value is used as the height data after filtering to replace the original data to be filtered.

Step S400, comparing the height data to be detected with all the adjacent height data, and marking the height data to be detected which is smaller than all the adjacent height data.

Specifically, each height data obtained in the above steps is detected, and whether the possibility of water accumulation exists at the acquisition point where the height data to be detected is located is judged according to the height data to be detected and the value of the adjacent height data. It can be understood that when all height data to be detected are less than all adjacent height data, the acquisition point where the height data to be detected are located is lower than all adjacent acquisition points, and belongs to the water accumulation area.

Referring to fig. 3, fig. 3 is a flow chart illustrating a method of collecting bathtub height data according to one embodiment. As shown in fig. 3, the method includes steps S101 to S103.

And step S101, establishing a tool coordinate system and a user coordinate system, and setting a motion track and a sampling interval.

And S102, controlling the manipulator to move above the inner surface of the bathtub along the motion track.

Step S103, controlling the laser displacement sensor to perform height data acquisition on a sampling point on the inner surface of the bathtub when the laser displacement sensor moves a sampling interval; each sampling point forms a rectangular lattice.

Specifically, in the present embodiment, the robot controls the laser displacement sensor to move, and the robot moves above the bottom of the inner surface of the bathtub according to the preset movement track, it can be understood that, by setting the tool coordinate system by the six-point method, since the bottom of the inner surface of the bathtub is slightly inclined, for such an inclined plane, as long as the Z-axis of the tool coordinate system is perpendicular to the inclined plane, the X and Y directions are equivalent to the X and Y directions of the bottom of the inner surface of the bathtub. As shown in fig. 4, the motion track of the manipulator moves reciprocally and transversely, the laser displacement sensor collects height data at intervals along the motion track of the manipulator, and the collection points are arranged in a rectangular lattice structure.

Referring to fig. 5, fig. 5 is a flow chart illustrating a method of detecting and correcting abnormal data according to an embodiment. As shown in fig. 5, the method includes steps S201 to S202.

Step S201, performing a difference operation on two adjacent height data, comparing the difference between the two adjacent height data with a gradient threshold, and replacing the latter height data with the corrected height data when the difference is greater than the gradient threshold.

And step S202, calculating the proportion of the difference value larger than the gradient threshold value, and alarming when the proportion of the difference value larger than the gradient threshold value exceeds y.

Specifically, the gradient threshold is a parameter preset according to the design and material difference of the bottom of the inner surface of the bathtub and is used for representing the maximum gradient value of the bottom of the inner surface of the bathtub corresponding to the type and/or material, the height difference of two acquisition points is larger than the gradient threshold, namely the acquisition points do not meet the gradient requirement, the acquisition points are marked as abnormal data, the acquisition points are recorded and data correction is carried out according to a threshold algorithm, after the comparison of each adjacent acquisition point is completed, when the proportion of the abnormal data is larger than y, the fact that the bathtub does not meet the requirement is reflected or a great error exists in the data acquisition process, and an alarm is given.

In the technical solution of this embodiment, an algorithm formula for correcting abnormal data is as follows: and when the corrected height data is (the previous height data + a gradient threshold value) x k and the abnormal data proportion is less than y, the corrected height data is regarded as the level that the locally acquired height data has errors or the gradient of the local position of the bathtub does not meet the requirement but does not reach a defective product, the corrected height data is used for replacing the original abnormal data, and the next step can be executed.

Where k is a scaling factor, k is [0.6, 0.9], y is a scaling threshold, and y is [ 2%, 10% ].

Referring to fig. 6, fig. 6 is a flowchart illustrating a method of comparing height data to be detected with all adjacent height data thereof according to the first embodiment. As shown in fig. 6, the method includes steps S401 to S403.

Step S401, identifying the data position of the first height data to be detected; the first height data to be detected comprises a height data.

Step S402, intercepting the first height data to be detected by using a data window, so that the first height data to be detected and all the adjacent height data thereof are in the intercepting range of the data window.

Step S403, comparing the first height data to be detected with all the adjacent height data thereof, and marking the first height data to be detected smaller than all the adjacent height data as waterlogged area data.

Specifically, the data positions of the data list height data may be divided into corner positions indicating positions at four corners of the data list, the height data of which is only three adjacent height data, peripheral positions indicating positions at four sides of the data list (excluding the corner positions), the height data of which has five adjacent height data, and intermediate positions indicating positions within the four sides of the data list, the height data of which has eight adjacent height data.

When the height data to be detected is detected by using the data window, the height data to be detected and all the adjacent height data thereof are within the range of the data window, exemplarily, as shown in fig. 7, when the height data to be detected at the middle position of the data list is detected, eight adjacent height data of the height data to be detected also correspondingly fall into the data window, the height data to be detected and the eight adjacent height data thereof are sequentially compared, if the height data to be detected is smaller than the eight adjacent height data, it is determined that the height data to be detected is water accumulation area data, and the corresponding acquisition point is a water accumulation area.

If the height data to be detected is the ponding region data, the ponding region data can be sent to the data memory, the marked ponding region data is displayed, and the position of the ponding region is visually reflected.

Referring to fig. 8, fig. 8 is a flowchart illustrating a method of comparing height data to be detected with all adjacent height data thereof according to a second embodiment. As shown in fig. 8, on the basis of the embodiment of fig. 6, the method further includes steps S404 to S406.

Step S404, identifying the data position of the second height data to be detected; the second height data to be detected comprises first height data to be detected and all adjacent height data smaller than the first height data to be detected.

Step S405, intercepting the second height data to be detected by using the data window, so that the second height data to be detected and all adjacent height data thereof are in the intercepting range of the data window.

Step S406, comparing the second height data to be detected with all the adjacent height data, and marking the second height data to be detected smaller than all the adjacent height data as ponding area data.

Since the range of the water accumulation region may not be limited to one acquisition point, or the height data of two adjacent acquisition points may be respectively smaller than all the adjacent height data around the two acquisition points, a larger area of the water accumulation region is created, and in this embodiment, such a situation is detected.

Specifically, after comparing the first height data to be detected in steps S401 to S403, if the first height data to be detected is greater than at least one adjacent height data, the first height data to be detected and the adjacent height data are taken as a whole as the second height data to be detected, and the second height data to be detected is detected to determine whether all the first height data to be detected is less than all the adjacent height data. Illustratively, for a first height data to be detected positioned at a middle position, one of eight adjacent height data is smaller than the first height data to be detected, and the one is larger than the first height data to be detected, the first height data to be detected and the adjacent height data are taken as second height data to be detected, a data window with a larger range is used for intercepting (12) the first height data and all the adjacent height data thereof, two data to be detected of the second height data to be detected are respectively compared with each adjacent height data, if the two height data to be detected are both smaller than each adjacent height data, the second height data to be detected is judged to be water accumulation area data, two corresponding acquisition points thereof are water accumulation areas, otherwise, if the adjacent height data smaller than the second height data to be detected are also appeared, the adjacent height data are added into the second height data to be detected, and repeating the detection steps until the ponding area is confirmed.

According to a second aspect of the invention, a bathtub surface water detection system is provided.

Referring to fig. 9, fig. 9 is a block diagram illustrating a bathtub surface water detection system according to an embodiment. As shown in fig. 9, the system includes:

the sampling module 100 is used for continuously acquiring data of the bottom of the inner surface of the bathtub to obtain discrete height data; the sampling module 100 acquires a detection signal of the laser displacement sensor;

the preprocessing module 200 is used for storing the height data into a corresponding data list according to the position sequence of the detection area, and detecting and correcting abnormal data;

the filtering module 300 is configured to perform filtering processing on the height data from which the abnormal data is removed;

the comparison module 400 compares the height data to be detected with all the adjacent height data, and marks the height data to be detected which is smaller than all the adjacent height data.

For specific limitations of the bathtub surface water detection system, reference may be made to the above limitations of a method for detecting water accumulation on a bathtub surface, which are not described in detail herein. All or part of the modules in the bathtub surface water detection system can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

According to a third aspect of the invention, a computer device is provided.

Referring to fig. 10, fig. 10 is a diagram illustrating an internal structure of a computer apparatus according to an embodiment. As shown in fig. 10, the computer device includes a processor, a memory, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The computer program is executed by a processor to implement a method of bath surface water detection.

According to a fourth aspect of the present invention, there is also provided a computer storage medium having a computer program stored therein, the computer storage medium being a magnetic random access memory, a read only memory, a programmable read only memory, an erasable programmable read only memory, an electrically erasable programmable read only memory, a flash memory, a magnetic surface memory, an optical disc, a read only optical disc, or the like; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc. The computer program is executed by a processor to realize the detection method of the water accumulated on the surface of the bathtub.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.