Water pipe status detection method, device, computer equipment and storage medium

Abstract

The present application relates to the field of detection technology and provides a water pipe status detection method, apparatus, computer equipment, and storage medium. The present application enables accurate determination of whether a water pipe is in a critical freezing state. The method comprises: collecting water pressure values ​​of the water pipe under test during at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences; collecting ambient temperature values ​​of the water pipe under test during an ambient temperature detection period to obtain an ambient temperature value sequence; and determining that the water pipe under test is in a critical freezing state if both of the at least two water pressure value sequences satisfy a water pressure increasing trend condition and the ambient temperature value sequence satisfies an ambient temperature threshold condition.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and in particular to a water pipe status detection method, device, computer equipment and storage medium. Background Art

[0002] With the development of home appliance technology, washing machines have become an indispensable household appliance in family life, and washing machines are often placed on balconies. In daily use, the washing machine is connected to the faucet through an inlet pipe, which is equipped with an inlet valve. When the user starts the washing machine, the inlet valve on the inlet pipe opens, and tap water is supplied to the washing machine tub through the inlet pipe. After the washing machine finishes running, the inlet valve closes, but the faucet does not close. The inlet pipe between the inlet valve and the faucet is always filled with tap water.

[0003] When winter arrives and the temperature drops below 0°C, the residual water in the water pipe freezes and expands, increasing the pressure inside. When the volume of water in the pipe exceeds the pipe's capacity, the pipe bursts. If the faucet is left running, water can flow through the cracks in the pipe, potentially causing significant damage such as flooding.

[0004] In current technology, users judge whether the washing machine water inlet pipe is in a critical freezing state based on the real-time temperature. However, such judgment is not accurate. Summary of the Invention

[0005] Based on this, it is necessary to provide a water pipe status detection method, device, computer equipment and storage medium to address the above technical problems.

[0006] A water pipe status detection method, the method comprising:

[0007] Collecting water pressure values ​​of the water pipe to be tested in at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences;

[0008] Collecting the ambient temperature value of the water pipe to be tested during the ambient temperature detection period to obtain an ambient temperature value sequence;

[0009] If at least two water pressure value sequences satisfy the water pressure value increasing trend condition, and the ambient temperature value sequence satisfies the ambient temperature threshold condition, it is determined that the water pipe to be tested is in a critical freezing state.

[0010] In one embodiment, collecting the ambient temperature value of the water pipe to be tested during the ambient temperature detection period includes:

[0011] Collect the water temperature values ​​of the water pipe to be tested during the water temperature detection period to obtain a water temperature value sequence;

[0012] If the water temperature value sequence meets the water temperature threshold condition, the ambient temperature value of the water pipe to be tested within the ambient temperature detection period is collected.

[0013] In one embodiment,

[0014] The method further comprises:

[0015] Collecting ambient temperature sampling values ​​of the water pipe to be tested within the ambient temperature sampling period to obtain an ambient temperature sampling value sequence;

[0016] If the water temperature value sequence meets the water temperature threshold condition, collecting the ambient temperature value of the water pipe to be tested within the ambient temperature detection period, including:

[0017] If the ambient temperature sampling value sequence meets the ambient temperature sampling value downward trend condition, and the water temperature value sequence meets the water temperature threshold condition, the ambient temperature value of the water pipe to be tested during the ambient temperature detection period is collected.

[0018] In one embodiment, after collecting the water temperature values ​​of the water pipe to be tested within the water temperature detection period to obtain a water temperature value sequence, the method further includes:

[0019] If the water temperature value sequence satisfies the water temperature value decreasing trend condition, and there are at least two water temperature values ​​in the water temperature value sequence that satisfy the water temperature threshold condition, it is determined that the water temperature value sequence satisfies the water temperature threshold condition.

[0020] In one embodiment,

[0021] The collecting of the water temperature values ​​of the water pipe to be tested within the water temperature detection period to obtain a water temperature value sequence includes:

[0022] Collecting water temperature values ​​of the water pipe to be tested within a water temperature detection period to obtain a first water temperature value sequence;

[0023] Dividing the first water temperature value sequence into at least two groups of second water temperature value sequences; each group of second water temperature value sequences contains at least two water temperature values;

[0024] Obtain a water temperature value sequence according to the average value of the water temperature sequence corresponding to each group of the second water temperature value sequence;

[0025] and / or,

[0026] The collecting of the ambient temperature sampling values ​​of the water pipe to be tested within the ambient temperature sampling period to obtain an ambient temperature sampling value sequence includes:

[0027] Collecting ambient temperature sampling values ​​of the water pipe to be tested within an ambient temperature sampling period to obtain a first ambient temperature sampling value sequence;

[0028] Dividing the first ambient temperature sampling value sequence into at least two groups of second ambient temperature sampling value sequences; each group of second ambient temperature sampling value sequences includes at least two ambient temperature sampling values;

[0029] An ambient temperature sampling value sequence is obtained according to the average value of the ambient temperature sampling sequence corresponding to each group of second ambient temperature sampling value sequences.

[0030] In one embodiment, after collecting the water pressure values ​​of the water pipe to be tested in at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences, the method further includes:

[0031] For each water pressure value sequence, the water pressure value sequence is divided into a front water pressure value sequence and a rear water pressure value sequence; the front water pressure value sequence and the rear water pressure value sequence each contain at least two water pressure values;

[0032] If the preceding water pressure value sequence satisfies the water pressure value continuous increase condition, and the following water pressure value sequence satisfies the water pressure threshold condition, then it is determined that the water pressure value sequence satisfies the water pressure value increasing trend condition.

[0033] In one embodiment, the water pipe to be tested includes a water inlet pipe of a washing machine; the water pressure value includes a water pressure value at an interface between the water inlet pipe and a water inlet valve of the washing machine; after determining that the water pipe to be tested is in a critical freezing state, the method further includes:

[0034] Control the water inlet valve and the drain valve of the washing machine to drain the water from the water inlet pipe.

[0035] A water pipe status detection device, comprising:

[0036] A water pressure acquisition module is used to acquire the water pressure values ​​of the water pipe to be tested in at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences;

[0037] A temperature acquisition module is used to acquire the ambient temperature value of the water pipe to be tested during the ambient temperature detection period to obtain an ambient temperature value sequence;

[0038] The state judgment module is configured to judge that the water pipe to be tested is in a critical freezing state if the at least two water pressure value sequences both meet a water pressure value increasing trend condition and the ambient temperature value sequence meets an ambient temperature threshold condition.

[0039] A computer device includes a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0040] Water pressure values ​​of the water pipe to be tested are collected during at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences. Ambient temperature values ​​of the water pipe to be tested are collected during an ambient temperature detection period to obtain an ambient temperature value sequence. If at least two water pressure value sequences both meet a water pressure increasing trend condition, and the ambient temperature value sequence meets an ambient temperature threshold condition, the water pipe to be tested is determined to be in a critical freezing state.

[0041] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the following steps:

[0042] Water pressure values ​​of the water pipe to be tested are collected during at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences. Ambient temperature values ​​of the water pipe to be tested are collected during an ambient temperature detection period to obtain an ambient temperature value sequence. If at least two water pressure value sequences both meet a water pressure increasing trend condition, and the ambient temperature value sequence meets an ambient temperature threshold condition, the water pipe to be tested is determined to be in a critical freezing state.

[0043] The above-mentioned water pipe status detection method, apparatus, computer equipment, and storage medium collect water pressure values ​​of the water pipe under test during at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences, and collect ambient temperature values ​​of the water pipe under test during an ambient temperature detection period to obtain an ambient temperature value sequence. If at least two water pressure value sequences satisfy a water pressure value increasing trend condition, and the ambient temperature value sequence satisfies an ambient temperature threshold condition, the water pipe under test is determined to be in a critical freezing state. This solution collects water pressure values ​​of the water pipe under test during multiple consecutive water pressure detection cycles, forming multiple water pressure value sequences accordingly. Simultaneously, it collects ambient temperature values ​​of the water pipe under test during an ambient temperature detection period to form an ambient temperature value sequence. It then determines whether the multiple water pressure value sequences satisfy a preset water pressure value increasing trend condition, and whether the ambient temperature value sequence satisfies a preset ambient temperature threshold condition. If both conditions are met, the water pipe under test is determined to be in a critical freezing state, thereby accurately determining whether the water pipe is in a critical freezing state. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 2. A diagram showing an application environment of a water pipe status detection method according to an embodiment;

[0045] Figure 2 Schematic diagram of a flow chart of a water pipe status detection method in one embodiment;

[0046] Figure 3 A schematic diagram of a time-pressure curve of a water pipe status detection method in one embodiment;

[0047] Figure 4A schematic diagram of the output characteristics of a pressure sensor in a water pipe status detection method according to an embodiment;

[0048] Figure 5 A schematic diagram of a water pipe pressure change logic algorithm flow chart of a water pipe status detection method in one embodiment;

[0049] Figure 6 A schematic diagram of a temperature sampling logic algorithm flow chart of a water pipe status detection method in one embodiment;

[0050] Figure 7 Schematic diagram of seasonal variations of ambient temperature and water temperature in a water pipe status detection method according to one embodiment;

[0051] Figure 8 Schematic diagram of the main control process of the antifreeze function of the water pipe status detection method in one embodiment;

[0052] Figure 9 is a structural block diagram of a water pipe status detection device in one embodiment;

[0053] Figure 10 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0055] It should be noted that the user-related information (including but not limited to user device information, user personal information, etc.) and data and their processing (including but not limited to data used for display, data for analysis, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties; correspondingly, this application also provides a corresponding user authorization entrance for users to choose to authorize or refuse.

[0056] The water pipe status detection method provided in this application can be applied to Figure 1 In the application environment shown, specifically, the terminal 100 collects water pressure values ​​of the water pipe under test during at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences. It then collects ambient temperature values ​​of the water pipe under test during an ambient temperature detection period to obtain an ambient temperature value sequence. If both of the at least two water pressure value sequences meet a water pressure increasing trend condition, and the ambient temperature value sequence meets an ambient temperature threshold condition, the water pipe under test is determined to be in a critical freezing state. The terminal 100 may be, but is not limited to, various personal computers, laptop computers, smartphones, tablet computers, and washing machines.

[0057] In one embodiment, Figure 2 As shown, a water pipe status detection method is provided, which is applied to Figure 1 The terminal 100 in FIG. 1 is taken as an example to illustrate the method, which includes the following steps:

[0058] Step S201 : collecting water pressure values ​​of a water pipe to be tested in at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences.

[0059] Among them, the water pipe to be tested refers to a water pipe filled with water to be tested whether it is in a critical freezing state, such as the water inlet pipe of a washing machine; at least two consecutive water pressure detection cycles refer to a certain time period of at least two consecutive preset time lengths for detecting the water pressure of the water pipe to be tested, such as 20:00 to 20:10, 20:10 to 20:20 and 20:20 to 20:30; the water pressure value refers to the water pressure value of the water pipe to be tested within the water pressure detection cycle, such as 300Kpa; at least two water pressure value sequences refer to sequences of corresponding water pressure values ​​of the water pipe to be tested collected by the terminal 100 within at least two consecutive water pressure detection cycles, for example, the two water pressure value sequences are 250Kpa, 255Kpa, 260Kpa, 265Kpa, 270Kpa and 275Kpa, 280Kpa, 285Kpa, 290Kpa, 295Kpa respectively.

[0060] Specifically, such as Figure 3 As shown, during multiple consecutive water pressure detection cycles, the terminal 100 continuously collects the water pressure value at the interface between the water inlet pipe of the washing machine and the water inlet valve of the washing machine, and obtains a water pressure value sequence during each water pressure detection cycle, thereby obtaining multiple consecutive water pressure value sequences.

[0061] Step S202 : collecting the ambient temperature values ​​of the water pipe to be tested during the ambient temperature detection period to obtain an ambient temperature value sequence.

[0062] In this step, the ambient temperature detection period refers to a period of time during which the terminal 100 continuously collects ambient temperature data, for example, a period during which the terminal 100 collects the temperature value of the environment surrounding the water pipe under test in real time every 10 minutes. The ambient temperature value refers to the temperature value of the environment surrounding the water pipe under test during the ambient temperature detection period, for example, 5 degrees Celsius. The ambient temperature value sequence refers to the sequence of ambient temperature values ​​of the water pipe under test collected by the terminal 100 during the ambient temperature detection period, for example, 5°C, 5°C, and 4°C. Specifically, the terminal 100 continuously collects ambient temperature values ​​of the environment surrounding the water pipe under test during the ambient temperature detection period to obtain the ambient temperature value sequence.

[0063] Step S203 : If at least two water pressure value sequences satisfy the water pressure value increasing trend condition, and the ambient temperature value sequence satisfies the ambient temperature threshold condition, it is determined that the water pipe to be tested is in a critical freezing state.

[0064] Among them, the water pressure value increasing trend condition refers to the condition that the water pressure value shows an overall increasing trend, such as the condition that the water pressure value continues to increase; the ambient temperature threshold condition refers to the condition that is less than a certain set ambient temperature value. For example, the ambient temperature value sequence satisfies the ambient temperature threshold condition, which can be that the 10 most recent ambient temperature values ​​collected by the terminal 100 in the ambient temperature value sequence meet the condition that they are all less than 0 degrees Celsius.

[0065] Specifically, if the at least two water pressure value sequences satisfy the preset condition that the water pressure values ​​present an overall increasing trend, and the ambient temperature value sequence satisfies the preset ambient temperature threshold condition, the terminal 100 determines that the water pipe to be tested is in a critical freezing state.

[0066] In the above-mentioned water pipe status detection method, water pressure values ​​of the water pipe under test are collected over at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences. The ambient temperature values ​​of the water pipe under test are collected over an ambient temperature detection period to obtain an ambient temperature value sequence. If both of the at least two water pressure value sequences satisfy an increasing water pressure trend condition, and the ambient temperature value sequence satisfies an ambient temperature threshold condition, the water pipe under test is determined to be in a critical freezing state. This solution collects water pressure values ​​of the water pipe under test over multiple consecutive water pressure detection cycles, forming multiple water pressure value sequences accordingly. Simultaneously, ambient temperature values ​​of the water pipe under test over the ambient temperature detection period are collected, forming a temperature value sequence accordingly. It is then determined whether the multiple water pressure value sequences satisfy a pre-set increasing water pressure trend condition, and whether the ambient temperature value sequence satisfies a pre-set ambient temperature threshold condition. If both conditions are met, the water pipe under test is determined to be in a critical freezing state, thereby accurately determining whether the water pipe is in a critical freezing state.

[0067] In one embodiment, the above-mentioned step S202 of collecting the ambient temperature value of the water pipe to be tested during the ambient temperature detection period specifically includes: collecting the water temperature value of the water pipe to be tested during the water temperature detection period to obtain a water temperature value sequence; if the water temperature value sequence meets the water temperature threshold condition, collecting the ambient temperature value of the water pipe to be tested during the ambient temperature detection period.

[0068] In this embodiment, the water temperature detection period refers to a certain time period of a preset length for detecting the temperature value of the water in the water pipe to be tested, for example, from 20:00 to 21:00 every day; the water temperature value refers to the temperature value of the water in the water pipe to be tested within the water temperature detection period, for example, 5 degrees Celsius; the water temperature value sequence refers to the sequence of water temperature values ​​of the water pipe to be tested collected by the terminal 100 within the water temperature detection period, for example, 5°C, 5°C, 4°C; the water temperature threshold condition refers to the condition of being less than a set water temperature value. For example, the water temperature value sequence meeting the water temperature threshold condition can be that the 10 most recent water temperature values ​​collected by the terminal 100 in the water temperature value sequence meet the condition of being less than 0 degrees Celsius.

[0069] Specifically, the terminal 100 collects the water temperature value of the washing machine's water inlet pipe during the fixed working hours of the washing machine every day, obtains a water temperature value sequence, and determines whether the 10 most recently collected water temperature values ​​in the water temperature value sequence are all less than 0 degrees Celsius. If so, the terminal 100 collects the ambient temperature value of the water pipe to be tested during the ambient temperature detection period.

[0070] The technical solution of this embodiment is to collect the water temperature value of the water pipe to be tested by the terminal 100 and determine whether the water temperature value sequence meets the water temperature threshold condition, so that the terminal 100 can more accurately determine whether the water pipe is in a critical freezing state.

[0071] In one embodiment, the above method can also enter the stage of collecting the ambient temperature value of the water pipe to be tested within the ambient temperature detection period through the following steps, specifically including: collecting the ambient temperature sampling values ​​of the water pipe to be tested within the ambient temperature sampling period to obtain an ambient temperature sampling value sequence; if the ambient temperature sampling value sequence meets the ambient temperature sampling value downward trend condition, and the water temperature value sequence meets the water temperature threshold condition, then collecting the ambient temperature value of the water pipe to be tested within the ambient temperature detection period.

[0072] In this embodiment, the ambient temperature sampling period refers to a certain period of time of a preset length for detecting the ambient temperature of the environment in which the water pipe to be tested is located, for example, from 20:00 to 21:00 every day; the ambient temperature sampling value refers to the temperature value of the environment in which the water pipe to be tested is located within the ambient temperature sampling period, for example, 5 degrees Celsius; the ambient temperature sampling value sequence refers to the sequence of ambient temperature sampling values ​​of the water pipe to be tested collected by the terminal 100 within the ambient temperature sampling period, for example, 5°C, 5°C, 4°C; the ambient temperature sampling value downward trend condition refers to the condition under which the ambient temperature sampling values ​​show an overall downward trend, for example, the ambient temperature sampling value continues to decline.

[0073] Specifically, the terminal 100 collects the ambient temperature sampling values ​​of the washing machine water inlet pipe during the fixed working hours of the washing machine every day to obtain an ambient temperature sampling value sequence, and determines whether the ambient temperature sampling value sequence meets the condition of a continuous downward trend of the ambient temperature sampling values, and whether the water temperature value sequence meets the water temperature threshold condition. If both of the above two conditions are met, the terminal 100 collects the ambient temperature value of the water pipe to be tested during the ambient temperature detection period.

[0074] The technical solution of this embodiment is to collect ambient temperature sampling values ​​through the terminal 100 and determine whether the ambient temperature sampling value sequence meets the ambient temperature sampling value downward trend condition, so that the terminal 100 can more accurately determine whether the water pipe is in a critical freezing state.

[0075] In one embodiment, the above method can also determine whether the water temperature value sequence meets the water temperature threshold condition through the following steps, specifically including: if the water temperature value sequence meets the water temperature value decreasing trend condition, and there are at least two water temperature values ​​in the water temperature value sequence that meet the water temperature threshold condition, then determine that the water temperature value sequence meets the water temperature threshold condition.

[0076] In this embodiment, the water temperature value decreasing trend condition refers to a condition in which the water temperature value exhibits an overall decreasing trend, such as a condition in which the water temperature value exhibits a continuous decreasing trend. Specifically, after the terminal 100 collects the water temperature values ​​of the washing machine's water inlet pipe during a fixed operating time of the washing machine each day, thereby obtaining a water temperature value sequence, the terminal 100 determines whether the water temperature value sequence satisfies the continuous decreasing trend condition and whether the three most recently collected water temperature values ​​in the water temperature value sequence are all below 5 degrees Celsius. If both of these conditions are met, the terminal 100 determines that the water temperature value sequence satisfies the water temperature threshold condition.

[0077] The technical solution of this embodiment determines whether the water temperature value sequence meets the water temperature threshold condition by the terminal 100, by judging whether the water temperature value sequence meets the water temperature threshold condition. This enables the terminal 100 to more accurately judge whether the water temperature value sequence meets the water temperature threshold condition, thereby facilitating a more accurate judgment of whether the water pipe is in a critical freezing state.

[0078] In one embodiment, the above method can also obtain a water temperature value sequence and / or an ambient temperature sampling value sequence through the following steps, specifically including: collecting the water temperature value of the water pipe to be tested during the water temperature detection period to obtain a first water temperature value sequence, dividing the first water temperature value sequence into at least two groups of second water temperature value sequences, and obtaining a water temperature value sequence according to the average value of the water temperature sequences corresponding to each group of second water temperature value sequences, and / or collecting the ambient temperature sampling value of the water pipe to be tested during the ambient temperature sampling period to obtain a first ambient temperature sampling value sequence, dividing the first ambient temperature sampling value sequence into at least two groups of second ambient temperature sampling value sequences, and obtaining an ambient temperature sampling value sequence according to the average value of the ambient temperature sampling value sequences corresponding to each group of second ambient temperature sampling value sequences.

[0079] In this embodiment, the first water temperature value sequence refers to a sequence of water temperature values ​​collected by the terminal 100 during the water temperature detection period of the water pipe to be tested, for example, 5°C, 5°C, 4°C, 4°C, 3°C, and 3°C; wherein each group of second water temperature value sequences contains at least two water temperature values, and at least two groups of second water temperature value sequences refer to water temperature value sequences obtained by sequentially dividing the first water temperature value sequence, for example, three groups of second water temperature value sequences can be 5°C, 5°C and 4°C, 4°C and 3°C, and 3°C; the water temperature sequence average value corresponding to each group of second water temperature value sequences refers to the average value of all water temperature values ​​in each group of second water temperature value sequences, for example, if three groups of second water temperature value sequences are 5°C, 5°C and 4°C, 4°C and 3°C, and 3°C, then the water temperature sequence average value corresponding to these three groups of second water temperature value sequences is 5°C, 4°C, and 3°C; the first ambient temperature sampling value sequence refers to the sequence of water temperature values ​​collected by the terminal 100 during the ambient temperature detection period of the water pipe to be tested. A sequence of ambient temperature sampling values ​​within a temperature sampling period, for example, 5°C, 5°C, 4°C, 4°C, 3°C, and 3°C; wherein each group of second ambient temperature sampling value sequences includes at least two ambient temperature sampling values, and the at least two groups of second ambient temperature sampling value sequences refer to ambient temperature sampling value sequences obtained by sequentially dividing the first ambient temperature sampling value sequence, for example, the three groups of second ambient temperature sampling value sequences may be 5°C, 5°C and 4°C, 4°C and 3°C, and 3°C; the average value of the ambient temperature sampling sequence corresponding to the group of second ambient temperature sampling value sequences refers to the average value of all ambient temperature sampling values ​​in each group of second ambient temperature sampling value sequences, for example, if three groups of second ambient temperature sampling value sequences are 5°C, 5°C and 4°C, 4°C and 3°C, and 3°C, then the average values ​​of the ambient temperature sampling sequences corresponding to the three groups of second ambient temperature sampling value sequences are 5°C, 4°C, and 3°C.

[0080] Specifically, the terminal 100 collects the water temperature value of the water pipe to be tested during the water temperature detection period to obtain a first water temperature value sequence, which includes the latest 45 water temperature values ​​(for example, when 46 water temperature values ​​are collected, the 2nd to 46th water temperature values ​​are the latest water temperature values). The first temperature value sequence is then divided into 9 groups of second water temperature value sequences according to the collection time. Each group of second water temperature value sequences includes 5 temperature values. The average value of the temperature values ​​in each second water temperature value sequence is calculated, and the 9 calculated water temperature average values ​​are used as the water temperature value sequence. Similarly, the terminal 100 collects the ambient temperature of the water pipe to be tested during the ambient temperature sampling period. The first ambient temperature sampling value sequence is obtained by sampling the ambient temperature sampling values ​​​​at 45 times, and the first ambient temperature sampling value sequence includes the latest 45 ambient temperature sampling values ​​(for example, when 46 ambient temperature sampling values ​​are collected, the 2nd to 46th ambient temperature sampling values ​​are used as the latest ambient temperature sampling values). Then, the first ambient temperature sampling value sequence is divided into 9 groups of second ambient temperature sampling value sequences according to the collection time. Each group of second ambient temperature sampling value sequences includes 5 ambient temperature sampling values. The average value of the ambient temperature sampling values ​​in each second ambient temperature sampling value sequence is calculated, and the calculated 9 ambient temperature sampling average values ​​are used as the water temperature value sequence.

[0081] The technical solution of this embodiment is that the terminal 100 uses the average value of the water temperature sequence as the water temperature value sequence and the average value of the ambient temperature sampling sequence as the ambient temperature sampling value sequence, so that the error of the water temperature value sequence and the ambient temperature sampling value sequence is smaller and the accuracy is higher, which is conducive to the terminal 100 to make a more accurate judgment on whether the water pipe is in a critical freezing state.

[0082] In one embodiment, after the water pressure values ​​of the water pipe to be tested in at least two consecutive water pressure detection cycles are collected in the above-mentioned step S201 to obtain at least two water pressure value sequences, it is also possible to determine whether the water pressure value sequence meets the water pressure value increasing trend condition through the following steps, specifically including: for each water pressure value sequence, dividing the water pressure value sequence into a front water pressure value sequence and a rear water pressure value sequence; if the front water pressure value sequence meets the water pressure value continuous increasing condition, and the rear water pressure value sequence meets the water pressure threshold condition, then it is determined that the water pressure value sequence meets the water pressure value increasing trend condition.

[0083] In this embodiment, for example, a water pressure value sequence is divided into two water pressure value sequences according to the order of collection time, then the water pressure value sequence with an earlier time is the front water pressure value sequence, and the water pressure value sequence with a later time is the back water pressure value sequence, wherein the front water pressure value sequence and the back water pressure value sequence both contain at least two water pressure values. For example, if a water pressure value sequence is 250Kpa, 255Kpa, 260Kpa, 265Kpa, 270Kpa, then the front water pressure value sequence can be 250Kpa, 255Kpa, 260Kpa, and the back water pressure value sequence can be 265Kpa and 270Kpa; the condition for continuous increase in water pressure value refers to the condition that the water pressure value maintains a continuous increasing trend; the water pressure threshold condition refers to the condition that is greater than a set water pressure value. For example, the back water pressure value sequence satisfies the water pressure threshold condition when the minimum value of the water pressure values ​​in the back water pressure value sequence is greater than the average value of the water pressure values ​​in the corresponding front water pressure value sequence.

[0084] Specifically, after the terminal 100 collects the water pressure values ​​of the water pipe to be tested in at least two consecutive water pressure detection cycles and obtains at least two water pressure value sequences, the terminal 100 divides the water pressure value sequence into a front water pressure value sequence and a rear water pressure value sequence according to the collection time order for each water pressure value sequence. If the front water pressure value sequence meets the condition of continuous increase in water pressure values, and the rear water pressure value sequence meets the condition that the minimum value of the water pressure values ​​in the rear water pressure value sequence is greater than the corresponding average value of the water pressure values ​​in the front water pressure value sequence, then the terminal 100 determines that the water pressure value sequence meets the condition of increasing water pressure value trend.

[0085] The technical solution of this embodiment is to divide each water pressure value sequence into a front water pressure value sequence and a rear water pressure value sequence through the terminal 100, and judge whether the water pressure value continuous increase condition and the water pressure threshold condition are met accordingly, thereby determining whether the water pressure value sequence meets the water pressure value increase trend condition, so that the terminal 100 can more accurately judge whether the water pressure value sequence meets the water pressure value increase trend condition, which is conducive to more accurately judging whether the water pipe is in a critical freezing state.

[0086] In one embodiment, after determining that the water pipe to be tested is in a critical freezing state in step S203, the water in the water inlet pipe may be drained through the following steps, specifically including: controlling the water inlet valve and the drain valve of the washing machine to drain the water in the water inlet pipe.

[0087] In this embodiment, the water pipe to be tested may be the water inlet pipe of a washing machine; the water pressure value may be the water pressure value at the interface between the water inlet pipe and the washing machine's water inlet valve. Specifically, after the terminal 100 determines that the washing machine's water inlet pipe is in a critically frozen state, it activates the washing machine's display and audible alarm, prompting the user to turn off the faucet. It then simultaneously opens the water inlet and drain valves for 3 seconds, then closes them for 10 seconds. This cycle repeats 10 times, forming a drain circuit to drain the water from the water inlet pipe.

[0088] In the technical solution of this embodiment, the water inlet valve and the drain valve of the washing machine are controlled by the terminal 100 to drain the water in the water inlet pipe, which is beneficial to preventing the water in the water inlet pipe from freezing, and further preventing the water inlet pipe from bursting due to ice expansion.

[0089] The following uses an application example to illustrate that the method provided by this application can be applied to the control of preventing the water pipe of the washing machine from bursting. The main steps include:

[0090] Step 1: The probe of the pressure sensor is placed in the water inlet pipe (in actual application, the probe can be placed at the interface between the water inlet pipe and the water inlet valve). The pressure sensor converts the water pressure into an electrical signal of 0-5V, and the electrical signal is then transmitted to the terminal 100. When the pressure in the water inlet pipe changes, the output voltage of the sensor will also change positively (as Figure 4 shown), so that the change state of the water pipe pressure can be accurately measured. When the water in the water inlet pipe freezes, when the pressure in the pipe changes, the terminal 100 calculates the slope of the pressure change in real time. When the algorithm requirements are met, it is determined that the water in the water inlet pipe is at the freezing critical point. The specific algorithm steps are as follows: (Technical effect: When the washing machine is working, the pressure sensor continuously measures and records the pressure data of the water pipe. When the pressure of the water inlet pipe changes abnormally, the change can be obtained in time, as Figure 3 shown.)

[0091] Step 1.1: Under normal circumstances, the pressure of the water inlet pipe remains stable, as shown in the t1 time period of Figure 3 .

[0092] Step 1.2: In the t2 time period of Figure 3 , continuously sample N values (N = 1, 2, 3, 4, 5...), and store them in an array. When the time condition is met, judge whether the sampled values are n1 < n2 < n3 < n4 < n5 < Nn. If the condition is met, calculate the average value v(n) of these values and store this value, and then execute Step 1.3. If the condition is not met, return to the beginning of the t2 time period to measure again.

[0093] Step 1.3: In the t3 time period of Figure 3 , continuously sample M values (M = 1, 2, 3, 4, 5...), and calculate the minimum value Min(M) among the M values. When the time condition of t3 is met, compare Min(M) with the average value v(n) in the t2 time period. If Min(M) is greater than v(n), execute Step 1.4, otherwise return to Step 1.2 again.

[0094] Step 1.4: As shown in Figure 5As shown, steps 1.2 and 1.3 form a detection cycle. When such a cycle condition is met three times in a row, it is determined that the pressure change meets the algorithm requirements and the water in the water inlet pipe is at the critical point of freezing.

[0095] Step 2: If Figure 6 As shown, a temperature sensor is placed inside the washing machine tub. The temperature sensor measures the ambient temperature and tap water temperature, respectively. Using a specific temperature logic algorithm, the current season of the washing machine can be calculated. The specific algorithm steps are as follows: (Technical Effect: Based on the calculated ambient temperature, the terminal 100 can calculate the current season. Combined with the real-time measured water pipe pressure and the algorithm for preventing water pipe frost cracking, the water pipe can be effectively prevented from freezing and cracking. The temperature sensor can be shared with the existing temperature sensor of the washing machine, reducing the hardware cost of the algorithm.)

[0096] Step 2.1: The program collects the user's daily washing temperature data, recording the empty water level temperature inside the washing machine drum and the cold water temperature after the cold water valve enters the drum for 45 consecutive wash cycles. Each collected temperature data is stored in two 8-bit unit variables in the non-volatile storage unit.

[0097] Among them, (1) a washing operation cycle refers to: from the user starting the washing machine to the washing machine completing the washing cycle; (2) in the initial state, and when the washing machine is empty, the empty water level temperature inside the tub is regarded as the ambient temperature; (3) after the water in the tub reaches the set target and the water is only entering through the cold water valve (i.e., the faucet), the water temperature at this time is the actual tap water temperature.

[0098] Step 2.2: For the temperatures stored in the non-volatile storage unit, when the number of stored values ​​exceeds 45, each additional wash will store the temperature data as the most recent 45 collected data, thereby ensuring that the data in the non-volatile unit is the latest 45 temperature data (for example, when 46 data are collected, the 2nd to 46th data are the latest temperature data).

[0099] Step 2.3: Perform calculations on the stored data. When the program records data for 45 or more wash cycles, the ambient temperature is divided into groups of 5 data points according to the collection time sequence, and the 45 data points are divided into 9 groups in total. Calculate the average temperature v2 of each group of data. Similarly, the tap water temperature is divided into groups of 5 data points according to the collection time sequence, and the 45 data points are divided into 9 groups in total. Calculate the average temperature v3 of each group of data.

[0100] Temperature condition 1: The average ambient temperature v2 and the average tap water temperature v3 of the first 6 groups are both on a downward trend (e.g. Figure 7 As shown), and the average temperature v3 of the last three groups of tap water is lower than 10 degrees Celsius.

[0101] Temperature condition 2: When the average temperature of the 9 sets of tap water data is lower than 7 degrees Celsius.

[0102] When temperature condition 1 or temperature condition 2 is met, it is determined that the current season is winter.

[0103] Step 2.4: If the data of 45 washing operations are not fully collected (for example, only 30 times are collected), all the collected data are used for judgment. If the tap water temperature of each data is lower than 5 degrees Celsius (temperature condition 3), it is also determined that the current season is winter.

[0104] Step 2.5: When the program automatically determines that the current season is winter, the program automatically samples the ambient temperature in real time. If the real-time collected ambient temperature is always less than or equal to 0°C, it is set as the winter antifreeze condition is met.

[0105] Step 3: If Figure 8 As shown, the anti-freeze cracking algorithm, based on the results of steps 1 and 2 above, activates a display and an audible alarm when both conditions are met, prompting the user to turn off the faucet. The inlet and drain valves are simultaneously opened for 3 seconds, then closed for 10 seconds. This cycle repeats 10 times, forming a water drain loop to prevent ice from forming inside the pipes and, in turn, preventing cracking caused by expansion due to ice. After this action is completed, the slope of the pressure change in the water inlet pipe is rechecked. If it meets the pressure conditions, the anti-freeze action described above is reactivated. If not, the washing machine's main control panel automatically turns off the anti-freeze display and audible alarm, and the machine enters standby mode again.

[0106] The above application examples are helpful in preventing ice from forming inside the washing machine water pipes in a more energy-efficient manner, thereby preventing the washing machine water pipes from freezing and cracking due to expansion caused by ice.

[0107] It should be understood that, although the steps in the above flowchart are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the above flowchart may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0108] In one embodiment, Figure 9 As shown, a water pipe status detection device is provided, and the device 900 may include:

[0109] The water pressure acquisition module 901 is used to acquire the water pressure values ​​of the water pipe to be tested in at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences;

[0110] The temperature acquisition module 902 is used to acquire the ambient temperature value of the water pipe to be tested during the ambient temperature detection period to obtain an ambient temperature value sequence;

[0111] The state judgment module 903 is configured to judge that the water pipe to be tested is in a critical freezing state if the at least two water pressure value sequences both meet the water pressure value increasing trend condition and the ambient temperature value sequence meets the ambient temperature threshold condition.

[0112] In one embodiment, the temperature acquisition module 902 is used to acquire the water temperature value of the water pipe to be tested during the water temperature detection period to obtain a water temperature value sequence; if the water temperature value sequence meets the water temperature threshold condition, the ambient temperature value of the water pipe to be tested during the ambient temperature detection period is acquired.

[0113] In one embodiment, the temperature acquisition module 902 is further used to collect the ambient temperature sampling values ​​of the water pipe to be tested within the ambient temperature sampling period to obtain an ambient temperature sampling value sequence; if the ambient temperature sampling value sequence meets the ambient temperature sampling value downward trend condition and the water temperature value sequence meets the water temperature threshold condition, then the ambient temperature value of the water pipe to be tested within the ambient temperature detection period is collected.

[0114] In one embodiment, the temperature acquisition module 902 is further used to determine that the water temperature value sequence meets the water temperature threshold condition if the water temperature value sequence meets the water temperature value downward trend condition and there are at least two water temperature values ​​in the water temperature value sequence that meet the water temperature threshold condition.

[0115] In one embodiment, the temperature acquisition module 902 is further used to acquire the water temperature value of the water pipe to be tested during the water temperature detection period to obtain a first water temperature value sequence; divide the first water temperature value sequence into at least two groups of second water temperature value sequences; each group of second water temperature value sequences contains at least two water temperature values; obtain a water temperature value sequence based on the average value of the water temperature sequence corresponding to each group of second water temperature value sequences; acquire the ambient temperature sampling values ​​of the water pipe to be tested during the ambient temperature sampling period to obtain a first ambient temperature sampling value sequence; divide the first ambient temperature sampling value sequence into at least two groups of second ambient temperature sampling value sequences; each group of second ambient temperature sampling value sequences contains at least two ambient temperature sampling values; obtain an ambient temperature sampling value sequence based on the average value of the ambient temperature sampling sequence corresponding to each group of second ambient temperature sampling value sequences.

[0116] In one embodiment, the water pressure acquisition module 901 is used to divide each water pressure value sequence into a front water pressure value sequence and a rear water pressure value sequence; the front water pressure value sequence and the rear water pressure value sequence each contain at least two water pressure values; if the front water pressure value sequence meets the water pressure value continuous increase condition, and the rear water pressure value sequence meets the water pressure threshold condition, then it is determined that the water pressure value sequence meets the water pressure value increase trend condition.

[0117] In one embodiment, the water pipe to be tested includes the water inlet pipe of a washing machine; the water pressure value includes the water pressure value at the interface between the water inlet pipe and the water inlet valve of the washing machine; the device 900 also includes: a water valve control module, used to control the water inlet valve and the drain valve of the washing machine to drain the water from the water inlet pipe.

[0118] The specific definitions of the water pipe status detection device can be found in the definitions of the water pipe status detection method above and will not be repeated here. Each module in the aforementioned water pipe status detection device can be implemented in whole or in part through software, hardware, or a combination thereof. Each of these modules can be embedded in or independent of a processor in a computer device in hardware form, or stored in a computer device memory in software form, allowing the processor to call and execute the corresponding operations of each module.

[0119] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 10 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner. The wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a water pipe status detection method is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad provided on the computer device housing, or an external keyboard, touchpad or mouse.

[0120] Those skilled in the art will understand that Figure 10The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0121] In one embodiment, a computer device is further provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0122] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0123] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0124] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0125] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A water pipe status detection method, characterized in that: The method comprises: Collecting water pressure values ​​of the water pipe to be tested in at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences; Collecting water temperature values ​​of the water pipe to be tested within a water temperature detection period to obtain a first water temperature value sequence; Dividing the first water temperature value sequence into at least two groups of second water temperature value sequences; each group of second water temperature value sequences contains at least two water temperature values; Obtain a water temperature value sequence according to the average value of the water temperature sequence corresponding to each group of the second water temperature value sequence; If the ambient temperature sampling value sequence meets the ambient temperature sampling value downward trend condition, and the water temperature value sequence meets the water temperature threshold condition, then collecting the ambient temperature values ​​of the water pipe to be tested within the ambient temperature detection period to obtain an ambient temperature value sequence; If the at least two water pressure value sequences both satisfy the water pressure value increasing trend condition, and the ambient temperature value sequence satisfies the ambient temperature threshold condition, then it is determined that the water pipe to be tested is in a critical freezing state; The ambient temperature sampling value sequence is obtained in the following manner: Collecting ambient temperature sampling values ​​of the water pipe to be tested within an ambient temperature sampling period to obtain a first ambient temperature sampling value sequence; Dividing the first ambient temperature sampling value sequence into at least two groups of second ambient temperature sampling value sequences; each group of second ambient temperature sampling value sequences includes at least two ambient temperature sampling values; The ambient temperature sampling value sequence is obtained according to the average value of the ambient temperature sampling sequence corresponding to each group of second ambient temperature sampling value sequences.

2. The method according to claim 1, characterized in that The ambient temperature sampling value downward trend condition is a condition in which the ambient temperature sampling value continues to decrease.

3. The method according to claim 1, characterized in that The ambient temperature threshold condition is a condition that the ambient temperature is less than a set ambient temperature value.

4. The method according to claim 1, wherein After obtaining the water temperature value sequence according to the average value of the water temperature sequence corresponding to each group of the second water temperature value sequence, the method further includes: If the water temperature value sequence satisfies the water temperature value decreasing trend condition, and there are at least two water temperature values ​​in the water temperature value sequence that satisfy the water temperature threshold condition, it is determined that the water temperature value sequence satisfies the water temperature threshold condition.

5. The method according to claim 1, wherein The water temperature threshold condition is a condition that the water temperature is less than a set water temperature value.

6. The method according to claim 1, wherein After collecting the water pressure values ​​of the water pipe to be tested in at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences, the method further includes: For each water pressure value sequence, the water pressure value sequence is divided into a front-end water pressure value sequence and a rear-end water pressure value sequence; the front-end water pressure value sequence and the rear-end water pressure value sequence each contain at least two water pressure values; If the front water pressure value sequence meets the water pressure value continuous increase condition, and the rear water pressure value sequence meets the water pressure threshold condition, it is determined that the water pressure value sequence meets the water pressure value increase trend condition.

7. The method according to any one of claims 1 to 6, characterized in that The water pipe to be tested includes a water inlet pipe of a washing machine; the water pressure value includes a water pressure value at an interface between the water inlet pipe and a water inlet valve of the washing machine; after determining that the water pipe to be tested is in a critical freezing state, the method further includes: The water inlet valve and the drain valve of the washing machine are controlled to drain the water from the water inlet pipe.

8. A water pipe status detection device, characterized in that: The device comprises: A water pressure acquisition module is used to acquire the water pressure values ​​of the water pipe to be tested in at least two consecutive water pressure detection cycles to obtain at least two water pressure value sequences; a temperature acquisition module configured to acquire water temperature values ​​of the water pipe to be tested within a water temperature detection period to obtain a first water temperature value sequence; divide the first water temperature value sequence into at least two groups of second water temperature value sequences, each group of second water temperature value sequences containing at least two water temperature values; and obtain a water temperature value sequence based on an average value of the water temperature sequences corresponding to each group of second water temperature value sequences; and if the ambient temperature sampling value sequence satisfies a downward trend condition for the ambient temperature sampling values ​​and the water temperature value sequence satisfies a water temperature threshold condition, then acquire the ambient temperature value of the water pipe to be tested within the ambient temperature detection period to obtain an ambient temperature value sequence; a state judgment module, configured to judge that the water pipe to be tested is in a critical freezing state if the at least two water pressure value sequences both satisfy a water pressure value increasing trend condition and the ambient temperature value sequence satisfies an ambient temperature threshold condition; The temperature acquisition module is further used to collect the ambient temperature sampling values ​​of the water pipe to be tested within the ambient temperature sampling period to obtain a first ambient temperature sampling value sequence; divide the first ambient temperature sampling value sequence into at least two groups of second ambient temperature sampling value sequences; each group of second ambient temperature sampling value sequences contains at least two ambient temperature sampling values; and obtain the ambient temperature sampling value sequence based on the average value of the ambient temperature sampling sequences corresponding to each group of second ambient temperature sampling value sequences.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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