A pre-warning control method and device of a mobile air conditioner, the mobile air conditioner and a medium

Abstract

The present application relates to a kind of early warning control method, device, mobile air conditioner and medium of mobile air conditioner, the method can in the operation process of mobile air conditioner, if the mobile air conditioner has met preset stable operation condition, according to preset time period obtains outer pipe temperature data and inner pipe temperature data;Based on the time period, determine the outer pipe temperature data change parameter value corresponding to the outer pipe temperature data, and determine the inner pipe temperature data change parameter value corresponding to the inner pipe temperature data;Based on the outer pipe temperature data, the inner pipe temperature data, the outer pipe temperature data change parameter value and the inner pipe temperature data change parameter value, determine early warning category;According to the early warning category, send early warning signal.Through real-time dynamic detection inner and outer pipe temperature, in combination with the data change parameter value of inner and outer pipe temperature, judge whether mobile air conditioner is abnormal, realize in mobile air conditioner operation, for abnormal timely early warning, optimize user experience, avoid to cause security risk.

Description

Technical Field

[0001] This invention relates to the field of control technology, specifically to a method, device, portable air conditioner, and medium for early warning control of a portable air conditioner. Background Technology

[0002] Currently, portable air conditioners often encounter some abnormal situations during operation. For example, forgetting to plug the water plug, the air inlet of the evaporator or condenser being blocked (such as a curtain being sucked into the air inlet), water plug leakage, and slow refrigerant leakage.

[0003] In practice, it has been found that although portable air conditioners may experience minor anomalies in these situations, failing to trigger the machine's original protection mechanisms and still being able to operate, such anomalies can still affect the user experience and, in severe cases, easily pose safety hazards. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a method, device, portable air conditioner and medium for early warning control of portable air conditioners, so as to provide timely early warning of abnormalities during the operation of portable air conditioners, optimize user experience and avoid safety hazards.

[0005] According to a first aspect of the present invention, a pre-warning control method for a portable air conditioner is provided, comprising:

[0006] During the operation of the portable air conditioner, if the portable air conditioner has met the preset stable operating conditions, the external pipe temperature data and internal pipe temperature data are acquired according to the preset time period.

[0007] Based on the time period, determine the external pipe temperature data change parameter value corresponding to the external pipe temperature data, and determine the internal pipe temperature data change parameter value corresponding to the internal pipe temperature data;

[0008] Based on the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value, the warning category is determined;

[0009] A warning signal will be issued according to the warning category.

[0010] According to a second aspect of the present invention, a warning control device for a portable air conditioner is provided, applicable to a portable air conditioner, comprising:

[0011] The data acquisition unit is used to acquire external pipe temperature data and internal pipe temperature data according to a preset time period during the operation of the portable air conditioner, if the portable air conditioner has met the preset stable operating conditions.

[0012] The calculation unit is used to determine, based on the time period, the change parameter value of the outer pipe temperature data corresponding to the outer pipe temperature data, and the change parameter value of the inner pipe temperature data corresponding to the inner pipe temperature data;

[0013] The control unit is used to determine the warning category based on the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value; and to issue a warning signal according to the warning category.

[0014] According to a third aspect of the present invention, a portable air conditioner is provided, comprising:

[0015] At least one processor; and

[0016] A memory communicatively connected to the at least one processor; wherein,

[0017] The memory stores instructions that can be executed by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform the method described above.

[0018] According to a fourth aspect of the present invention, a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the above-described method is provided.

[0019] The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

[0020] By dynamically detecting the internal and external pipe temperatures in real time and combining the data changes of the internal and external pipe temperatures, it can determine whether the portable air conditioner is operating abnormally. This enables timely warnings for abnormalities during the operation of the portable air conditioner, optimizes the user experience, and avoids potential safety hazards.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0023] Figure 1 This is a flowchart illustrating a pre-warning control method for a portable air conditioner according to an exemplary embodiment;

[0024] Figure 2 This is a flowchart illustrating another pre-warning control method for a portable air conditioner according to an exemplary embodiment;

[0025] Figure 3This is a diagram illustrating the normal operation process of a portable air conditioner according to an exemplary embodiment;

[0026] Figure 4 This is a schematic block diagram illustrating a warning control device for a portable air conditioner according to an exemplary embodiment;

[0027] Figure 5 This is a schematic diagram illustrating the internal control circuit of an air conditioner according to an exemplary embodiment. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0029] Figure 1 This is a flowchart illustrating a pre-warning control method for a portable air conditioner according to an exemplary embodiment, such as... Figure 1 As shown, this method is applicable to portable air conditioners and includes:

[0030] Step S11: During the operation of the portable air conditioner, if the portable air conditioner has met the preset stable operating conditions, the external pipe temperature data and internal pipe temperature data are acquired according to the preset time period.

[0031] Step S12: Based on the time period, determine the change parameter value of the outer pipe temperature data corresponding to the outer pipe temperature data, and determine the change parameter value of the inner pipe temperature data corresponding to the inner pipe temperature data;

[0032] Step S13: Determine the warning category based on the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value;

[0033] Step S14: Issue a warning signal according to the warning category.

[0034] In this embodiment, the executing entity can be a portable air conditioner or a controller that has been pre-connected to the portable air conditioner; this embodiment does not limit this.

[0035] Currently, portable air conditioners often experience abnormalities during operation, such as forgetting to plug the water plug, blocked evaporator or condenser air inlets (e.g., curtains being sucked into the air inlet), water plug leaks, or slow refrigerant leakage. Sometimes these abnormalities don't trigger the machine's protection function. If the machine continues to run, it can negatively impact user experience and even pose safety hazards, indicating room for improvement. Therefore, this invention proposes a unified early warning control method for portable air conditioners addressing these abnormalities: During operation, the internal and external pipe temperatures are dynamically monitored in real-time, and a parameter value reflecting the rate of temperature change (e.g., the dynamic detection parameter slope k) is calculated. For different abnormal operating conditions, the rate of temperature change is compared between abnormal and normal operation—that is, the rate of temperature change is dynamically detected, using ΔT as the unit of time. The comparison of the two temperature changes determines whether the machine is operating abnormally. This method requires no preset judgment parameters and offers real-time performance, accuracy, and universality. Furthermore, it can effectively detect and judge various abnormal phenomena of portable air conditioners through a multi-level closed-loop control logic. When an abnormality is detected, it can issue an early warning signal in a timely manner to prevent the abnormal situation from developing further and causing the machine to stop down or even be damaged and pose safety hazards.

[0036] Specifically, during the operation of the portable air conditioner, it can be detected whether the portable air conditioner meets preset stable operating conditions. These preset stable operating conditions can be based on external pipe temperature data or internal pipe temperature data to determine whether the portable air conditioner has reached a stable operating state. Specifically, the preset stable operating conditions can be: within a preset time period, at preset intervals, the change value of the external pipe temperature is collected, and the ratio of the change value of the external pipe temperature to the preset interval is taken as the rate of change of the external pipe temperature; if, within the preset time period, the rate of change of the external pipe temperature is continuously detected to be less than 0, and the number of times is greater than a threshold, then the preset stable operating conditions are determined to be met. Here, the threshold number of times is preferably 2 or 3, the preset time period is preferably 10–60 seconds, and the preset interval is preferably 5–10 seconds. Optionally, the preset stable operating conditions can also be: within a preset time period, at preset intervals, the change value of the internal pipe temperature is collected, and the ratio of the change value of the internal pipe temperature to the preset interval is taken as the rate of change of the internal pipe temperature; if, within the preset time period, the rate of change of the internal pipe temperature is continuously detected to be less than 0, and the number of times is greater than a threshold, then the preset stable operating conditions are determined to be met.

[0037] Please see Figure 3 , Figure 3 This is a process diagram illustrating the normal operation of a portable air conditioner according to an exemplary embodiment, such as... Figure 3As shown, the pipe temperature change diagram during normal operation of a portable air conditioner can include the following four stages: O→A, A→B, B→C, and C→D. O→A indicates the portable air conditioner has just been turned on and is not yet stable; A→B indicates the portable air conditioner is operating stably; B→C indicates the portable air conditioner has started dispensing water; and C→D indicates the portable air conditioner is operating stably. The portable air conditioner has met the preset stable operating conditions, representing its current operating state after... Figure 3 Point A in the diagram. Specifically, for the external pipe temperature Tw, during the transition from startup to stable operation of the portable air conditioner, Tw first rises rapidly and then (passes point A) slowly decreases; while when using the internal pipe temperature Tn to determine whether the preset stable operating conditions are met, the internal pipe temperature Tn should first decrease rapidly and then (passes point A) slowly decrease again. That is, this application can combine the temperature change patterns of the internal and external pipes from startup to stability to determine whether the portable air conditioner meets the preset stable operating conditions.

[0038] Afterwards, the executing entity can acquire external pipe temperature data and internal pipe temperature data according to a preset time cycle, provided that the portable air conditioner has met the preset stable operating conditions. That is, the external pipe temperature and internal pipe temperature are acquired once every time cycle to obtain the external pipe temperature data and internal pipe temperature data. Here, the preset time cycle is preferably 10 to 60 seconds.

[0039] Subsequently, the executing entity can calculate the external pipe temperature difference based on the external pipe temperature value of the current time period and the external pipe temperature value of the previous time period, and determine the ratio of the external pipe temperature difference to the time period as the external pipe temperature data change parameter value. Similarly, the executing entity can calculate the internal pipe temperature difference based on the internal pipe temperature value of the current time period and the internal pipe temperature value of the previous time period, and determine the ratio of the internal pipe temperature difference to the time period as the internal pipe temperature data change parameter value. It is understood that the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value are all updated in each time period.

[0040] Subsequently, the executing entity can determine the changes in the internal and external pipe temperatures within the current time period based on the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value. Based on these changes, it can determine whether the portable air conditioner's operating status is abnormal. If an abnormality is detected, it further determines the warning category and issues a warning signal according to the category, achieving targeted warnings. The warning categories may include, but are not limited to, a first ordinary warning category, a second ordinary warning category, a third ordinary warning category, a fourth ordinary warning category, a first emergency warning category, and a second emergency warning category, etc., but this embodiment does not limit these categories. The warning categories are categorized as follows: The first general warning category corresponds to a small blockage at the evaporator air inlet; the second general warning category corresponds to a small blockage at the condenser air inlet and slow water leakage from the water plug; the third general warning category corresponds to slow refrigerant leakage, in which case the evaporator will gradually overheat; the fourth general warning category corresponds to no water plug blockage, in which case, after the machine has run for a period of time, there should be a rapid decrease in the internal pipe temperature, i.e., when the machine stores water to a certain level, the water pump motor starts pumping water, and the machine load decreases. The first emergency warning category corresponds to a large blockage at the evaporator air inlet, in which case the evaporator airflow decreases and the evaporator temperature drops rapidly. The second emergency warning category corresponds to a large blockage at the condenser air inlet and rapid water leakage from the water plug. In this case, water leakage weakens the condenser's heat exchange capacity, causing the condenser temperature to rise rapidly.

[0041] Optionally, different warning signals can be issued for ordinary warning signals and emergency warning signals. For example, a lower frequency flashing light can be issued for ordinary warning signals, while a higher frequency flashing light can be issued for emergency warning signals.

[0042] As an optional implementation, based on the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value, a warning category is determined, including:

[0043] Based on the external pipe temperature data, calculate the external pipe temperature difference between the current time period and the previous time period; and based on the internal pipe temperature data, calculate the internal pipe temperature difference between the current time period and the previous time period.

[0044] Obtain the normal temperature change values ​​of the outer pipe and the inner pipe when the portable air conditioner is in normal operation;

[0045] If the outer tube temperature difference is less than or equal to 0, the inner tube temperature difference is less than or equal to 0, the inner tube temperature data change parameter value is greater than or equal to the product of the first multiplier coefficient and the normal change value of the inner tube temperature and the duration is less than or equal to the first time threshold, and the inner tube temperature data change parameter value is less than or equal to the product of the second multiplier coefficient and the normal change value of the inner tube temperature, then the warning category is determined to be the first ordinary warning category; wherein, the first multiplier coefficient is less than the second multiplier coefficient.

[0046] In this embodiment, after the portable air conditioner is running, the external pipe temperature Tw of the portable air conditioner can be detected. Under normal circumstances, Tw continues to rise before the portable air conditioner stabilizes, and the rate of increase is relatively fast. Figure 3 The process is O→A. Simultaneously, at regular intervals t, the change parameter value ΔTw / Δt of the external pipe temperature of the portable air conditioner is calculated. Δt is typically taken as 5–10 seconds, and t as 10–60 seconds. The method to determine if point A has been passed is: if ΔTw / Δt < 0 is continuously detected and the number of times n > n0, then point A has been passed. Generally, n0 is preferably 2 or 3. The preset stable operating condition is: continuously detected ΔTw / Δt < 0 and the number of times n > n0. After the machine determines that point A has been passed, the internal pipe temperature Tn and external pipe temperature Tw of the portable air conditioner are detected. At regular intervals t, the absolute values ​​of the rate of change (slope) of the internal and external pipe temperatures are calculated to obtain the change parameter values ​​of the external and internal pipe temperatures, i.e., the change parameter value of the internal pipe temperature kn = |ΔTn / Δt|, and the change parameter value of the external pipe temperature kw = |ΔTw / Δt|. Where ΔTn is the temperature difference of the inner tube, ΔTw is the temperature difference of the outer tube, and Δt is a time period. If ΔTw≤0, ΔTn≤0, and kn≥a*kn0, and the duration is greater than t2 (t2 is generally 5-10 minutes), the machine is considered to have entered the water-spraying state and continues normal operation and testing. If the duration is less than t2, the evaporator air inlet is considered blocked. If kn≤b*kn0, the warning category is determined to be the first ordinary warning category. Where a is the first multiplier coefficient, b is the second multiplier coefficient, kn0 is the normal temperature change value of the inner tube, and t2 is the first time threshold.

[0047] As an optional implementation, the method further includes:

[0048] If the external pipe temperature difference value is greater than 0, and the external pipe temperature data change parameter value is greater than or equal to the product of the first multiplier coefficient and the normal change value of the external pipe temperature, and the external pipe temperature data change parameter value is less than or equal to the product of the second multiplier coefficient and the normal change value of the external pipe temperature, then the warning category is determined to be the second ordinary warning category.

[0049] In this embodiment, if ΔTw > 0, kw ≥ a*kw0, and kw ≤ b*kw0, it indicates that the condenser inlet is partially blocked or the water plug is slowly leaking, and the warning category is determined to be the second ordinary warning category. Here, kw0 is the normal change value of the external pipe temperature.

[0050] As an optional implementation, the method further includes:

[0051] If the temperature difference of the outer tube is less than or equal to 0 and the temperature difference of the inner tube is greater than 0, then the warning category is determined to be the third ordinary warning category.

[0052] In this embodiment, if ΔTw≤0 and ΔTn>0, it indicates that the external pipe temperature is decreasing, but the internal pipe temperature is increasing (the evaporator is overheating), which indicates that the refrigerant is leaking, and the warning category is determined to be the third ordinary warning category.

[0053] As an optional implementation, the method further includes:

[0054] If the temperature difference of the outer tube is less than or equal to 0, the temperature difference of the inner tube is less than or equal to 0, the temperature change parameter value of the inner tube is less than the product of the first multiplier coefficient and the normal temperature change value of the inner tube, and the duration is greater than the second time threshold, then the warning category is determined to be the fourth ordinary warning category.

[0055] In this embodiment, if ΔTw≤0, ΔTn≤0, and kn≤a*kn0, and the duration is greater than t1 (t1 can generally be set to 30-60 minutes), then it is determined that the machine is not clogged with a water plug. If a water plug is clogged, the internal pipe temperature should show a significant decrease after the machine has been running for a period of time; in this case, the warning category is determined to be the fourth ordinary warning category. Here, t1 is the second time threshold.

[0056] As an optional implementation, the method further includes:

[0057] If the outer tube temperature difference is less than or equal to 0, the inner tube temperature difference is less than or equal to 0, the inner tube temperature data change parameter value is greater than or equal to the product of the first multiplier coefficient and the normal change value of the inner tube temperature and the duration is less than or equal to the first time threshold, and the inner tube temperature data change parameter value is greater than the product of the second multiplier coefficient and the normal change value of the inner tube temperature, then the warning category is determined to be the first emergency warning category.

[0058] In this implementation, if ΔTw≤0, ΔTn≤0, and kn≥a*kn0, and the duration is greater than t2 (which is typically 5-10 minutes), the machine is considered to have entered the water-spraying state and continues normal operation and testing. If the duration is less than t2, the machine's evaporator air inlet is considered blocked. If kn>b*kn0, the warning category is determined to be the first emergency warning category.

[0059] As an optional implementation, the method further includes:

[0060] If the external pipe temperature difference value is greater than 0, and the external pipe temperature data change parameter value is greater than or equal to the product of the first multiplier coefficient and the normal change value of the external pipe temperature, and the external pipe temperature data change parameter value is greater than the product of the second multiplier coefficient and the normal change value of the external pipe temperature, then the warning category is determined to be the second emergency warning category.

[0061] In this embodiment, if ΔTw>0, kw≥a*kw0, and kw>b*kw0, then the warning category is determined to be the second emergency warning category.

[0062] As an optional implementation, issuing a warning signal according to the warning category includes:

[0063] According to the warning category, the target device controlling the portable air conditioner issues a warning signal that matches the warning category; wherein the target device includes at least one of the following: a warning signal light and an audio output device.

[0064] In this embodiment, for the ordinary warning category P, it can be set to flash once every 1 second, and flashing n times consecutively (n≥2) will indicate Pn-1 (for example, flashing once every 1 second and flashing twice consecutively will indicate P1 signal, corresponding to the first ordinary warning category P1); for the emergency warning category J, it can be set to flash once every 0.5 seconds, and flashing n times consecutively will indicate Jn-1 (for example, flashing once every 0.5 seconds and flashing twice consecutively will indicate J1 signal, corresponding to the first emergency warning category J1). Alternatively, in addition to the flashing frequency of the warning signal light, the warning signal can also be indicated by the intensity of the signal light, a buzzer sound, and a voice broadcast. The buzzer sound and voice broadcast can be controlled by an audio output device.

[0065] As an optional implementation, the method further includes:

[0066] Collect the periodic change rate of the external pipe temperature of the portable air conditioner;

[0067] If the temperature change rate of the external pipe is less than 0 and the number of cycles is greater than the set threshold, then the portable air conditioner is determined to have met the preset stable operating conditions.

[0068] In this embodiment, such as Figure 3 The process from O to A is as follows: The calculation unit of the portable air conditioner is started synchronously. At regular intervals t, ΔTw / Δt is calculated. Δt is typically taken as 5–10 seconds, and t as 10–60 seconds. Determining whether the preset stable operating conditions are met is equivalent to determining whether point A has been passed. The specific determination steps are as follows: When the machine continuously detects ΔTw / Δt < 0 and the number of times n > n0, it can be determined that the machine has passed point A. Generally, n0 is preferably taken as 2 or 3. Where ΔTw / Δt is the periodic change rate of the external pipe temperature of the portable air conditioner, n is the number of times, and n0 is the threshold number of times.

[0069] Please see Figure 2 , Figure 2 This is a flowchart illustrating another pre-warning control method for a portable air conditioner according to an exemplary embodiment, such as... Figure 2As shown, the portable air conditioner measures the internal pipe temperature Tn and external pipe temperature Tw. At regular intervals t, the absolute values ​​of the rate of change (slope) of the internal and external pipe temperatures are calculated to obtain the parameter values ​​for the internal pipe temperature change: kn = |ΔTn / Δt| and kw = |ΔTw / Δt|. Here, w and n are used as subscripts to refer to the real-time external and internal pipe temperature collection points, respectively. For example, Tw and Tn refer to the real-time external and internal pipe temperatures during machine operation. w0 and n0 refer to the external and internal pipe temperature collection points during normal machine operation (after point A), respectively. For example, Tw0 and Tn0 refer to the external and internal pipe temperatures during normal operation. Simply put, data without 0 represents real-time detection data, while data with 0 represents data recorded during normal machine operation after point A. Collection points w and n without 0 include data from collection points w0 and n0 with 0 (the actual machine operation includes both normal and abnormal operation). Determine if ΔTw ≤ 0. If not, then determine if kw ≥ a*kw0. kw0 here is the calculation result of the previous ΔT cycle, and the same applies below. If not, continue normal operation and testing, indicating that although a problem has been detected in the portable air conditioner, the degree of abnormality is minor and has no impact on its operation. Considering user experience, no intervention is needed. If yes, then determine if a*kw0 ≤ kw ≤ b*kw0. If yes, issue a normal warning signal P2 (indicating a small blockage at the condenser inlet or slow leakage from the water plug); if no, issue an emergency warning signal J2 (indicating a large blockage at the condenser inlet or rapid leakage from the water plug). This is because the portable air conditioner operates stably after point A, and normally Tw decreases. If ΔTw is greater than 0, it indicates that the condenser may be blocked or the water plug may be leaking (deteriorating condenser heat exchange). Then, based on the settings of multipliers a and b, if the change in kw is less than a multiple of kw0 during normal operation, the abnormality is considered minor and no warning is needed. If it exceeds a multiple of a, the severity of the abnormality needs to be assessed, and a warning should be issued to the user. If the change is greater than a but less than b, a normal warning P2 (a small portion of the condenser air inlet is blocked) is issued. If the change is greater than a multiple of b, an emergency (serious) warning signal J2 (a larger portion of the condenser air inlet is blocked) is issued. Next, it is determined whether ΔTw ≤ 0. If yes, then it is determined whether ΔTn ≤ 0. If no, meaning the external pipe temperature is decreasing but the internal pipe temperature is increasing (evaporator overheating), it indicates refrigerant leakage, and a warning signal P3 (slow refrigerant leakage) is issued. If ΔTw ≤ 0 and ΔTn ≤ 0, and if kn ≤ a*kn0 and the duration is greater than t1 (t1 can generally be set to 30–60 minutes), it is determined that the portable air conditioner is not blocked by a water plug (if blocked, the internal pipe temperature should show a significant decrease after the machine has been running for a period of time), and a warning signal P4 is issued. If ΔTw≤0, ΔTn≤0 and kn>a*kn0, and if the duration is greater than t2 (t2 can generally be taken as 5~10min), then the machine is considered to have entered the water-spraying state and will continue to operate normally and perform testing.If the duration is less than t2, the evaporator air inlet is considered blocked, and a normal P1 and an emergency J1 warning signal (evaporator air inlet blocked) are issued depending on the magnitude of the change. Here, kn0 and kw0 refer to the absolute values ​​of the slopes of the inner and outer pipe temperatures between points A and B (stable operation) during normal machine operation, respectively, and are taken as constants. Where a and b refer to multiplier coefficients, which are also constants, used to reflect the magnitude of the change of kn or kw relative to kn0 or kw0 when the portable air conditioner is running. That is, a and b can be calculated by (ΔT / Δt)w / (ΔT / Δt)w0 (when the system uses the external pipe temperature for judgment) or (ΔT / Δt)n / (ΔT / Δt)n0 (when the system uses the internal pipe temperature for judgment). (ΔT / Δt)w and (ΔT / Δt)n represent the rate of temperature change of the external and internal pipe temperatures when the machine is running abnormally, respectively. (ΔT / Δt)w0 and (ΔT / Δt)n0 represent the rate of temperature change of the external and internal pipe temperatures when the machine is running normally, respectively. And it is set that a < b (compared to the judgment formula multiplied by a, the judgment formula multiplied by b represents a greater degree of pipe temperature change, that is, a greater degree of system abnormality). For example, in a certain mobile machine system, the condenser temperature will slowly decrease when the prototype is running normally. If a small part of the condenser is blocked, the condenser temperature will start to rise in the opposite direction. If most of the condenser is blocked, the condenser temperature will rise significantly. The temperature changes are shown below.

[0070] Table 1

[0071]

[0072]

[0073] For scenario 1 (abnormal operation, partial blockage of the condenser), a = 5 is calculated using the formula (ΔT / Δt)w / (ΔT / Δt)w0, indicating that the condenser is blocked. For scenario 2 (abnormal operation, most of the condenser is blocked), b = 11 is calculated using the formula (ΔT / Δt)w / (ΔT / Δt)w0. For prototypes with different systems and structures, the values ​​of a and b can vary. Generally, a is preferably selected within the range of 3 to 6, and b is preferably selected within the range of 8 to 12.

[0074] In this embodiment of the invention, by real-time dynamic detection of the internal and external pipe temperatures and combining the data change parameter values ​​of the internal and external pipe temperatures, it is determined whether the portable air conditioner is operating abnormally. This enables timely warnings for abnormalities during the operation of the portable air conditioner, optimizes the user experience, and avoids potential safety hazards.

[0075] Based on the same inventive concept Figure 4 This is a schematic block diagram of a pre-warning control device 100 for a portable air conditioner according to an exemplary embodiment, as shown below. Figure 4 As shown, the device 100 is suitable for use in portable air conditioners and includes:

[0076] The acquisition unit 101 is used to acquire external pipe temperature data and internal pipe temperature data according to a preset time period if the portable air conditioner has met the preset stable operating conditions during operation.

[0077] The calculation unit 102 is used to determine, based on the time period, the change parameter value of the outer pipe temperature data corresponding to the outer pipe temperature data, and the change parameter value of the inner pipe temperature data corresponding to the inner pipe temperature data;

[0078] The control unit 103 is used to determine the warning category based on the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value; and to issue a warning signal according to the warning category.

[0079] As an optional implementation, the control unit 103 is specifically used for:

[0080] Based on the external pipe temperature data, calculate the external pipe temperature difference between the current time period and the previous time period; and based on the internal pipe temperature data, calculate the internal pipe temperature difference between the current time period and the previous time period.

[0081] Obtain the normal temperature change values ​​of the outer pipe and the inner pipe when the portable air conditioner is in normal operation;

[0082] If the outer tube temperature difference is less than or equal to 0, the inner tube temperature difference is less than or equal to 0, the inner tube temperature data change parameter value is greater than or equal to the product of the first multiplier coefficient and the normal change value of the inner tube temperature and the duration is less than or equal to the first time threshold, and the inner tube temperature data change parameter value is less than or equal to the product of the second multiplier coefficient and the normal change value of the inner tube temperature, then the warning category is determined to be the first ordinary warning category; wherein, the first multiplier coefficient is less than the second multiplier coefficient.

[0083] As an optional implementation, the control unit 103 is specifically used for:

[0084] If the external pipe temperature difference value is greater than 0, and the external pipe temperature data change parameter value is greater than or equal to the product of the first multiplier coefficient and the normal change value of the external pipe temperature, and the external pipe temperature data change parameter value is less than or equal to the product of the second multiplier coefficient and the normal change value of the external pipe temperature, then the warning category is determined to be the second ordinary warning category.

[0085] As an optional implementation, the control unit 103 is specifically used for:

[0086] If the temperature difference of the outer tube is less than or equal to 0 and the temperature difference of the inner tube is greater than 0, then the warning category is determined to be the third ordinary warning category.

[0087] As an optional implementation, the control unit 103 is specifically used for:

[0088] If the temperature difference of the outer tube is less than or equal to 0, the temperature difference of the inner tube is less than or equal to 0, the temperature change parameter value of the inner tube is less than the product of the first multiplier coefficient and the normal temperature change value of the inner tube, and the duration is greater than the second time threshold, then the warning category is determined to be the fourth ordinary warning category.

[0089] As an optional implementation, the control unit 103 is specifically used for:

[0090] If the outer tube temperature difference is less than or equal to 0, the inner tube temperature difference is less than or equal to 0, the inner tube temperature data change parameter value is greater than or equal to the product of the first multiplier coefficient and the normal change value of the inner tube temperature and the duration is less than or equal to the first time threshold, and the inner tube temperature data change parameter value is greater than the product of the second multiplier coefficient and the normal change value of the inner tube temperature, then the warning category is determined to be the first emergency warning category.

[0091] As an optional implementation, the control unit 103 is specifically used for:

[0092] If the external pipe temperature difference value is greater than 0, and the external pipe temperature data change parameter value is greater than or equal to the product of the first multiplier coefficient and the normal change value of the external pipe temperature, and the external pipe temperature data change parameter value is greater than the product of the second multiplier coefficient and the normal change value of the external pipe temperature, then the warning category is determined to be the second emergency warning category.

[0093] As an optional implementation, the control unit 103 is specifically used for:

[0094] According to the warning category, the target device controlling the portable air conditioner issues a warning signal that matches the warning category; wherein the target device includes at least one of the following: a warning signal light and an audio output device.

[0095] As an optional implementation, the acquisition unit 101 is also used for:

[0096] Collect the periodic change rate of the external pipe temperature of the portable air conditioner;

[0097] If the temperature change rate of the external pipe is less than 0 and the number of cycles is greater than the set threshold, then the portable air conditioner is determined to have met the preset stable operating conditions.

[0098] In this embodiment of the invention, by real-time dynamic detection of the internal and external pipe temperatures and combining the data change parameter values ​​of the internal and external pipe temperatures, it is determined whether the portable air conditioner is operating abnormally. This enables timely warnings for abnormalities during the operation of the portable air conditioner, optimizes the user experience, and avoids potential safety hazards.

[0099] The implementation methods and beneficial effects of each module in this embodiment can be found in the description of the corresponding method steps in the above embodiments, and will not be repeated in this embodiment.

[0100] Based on the same inventive concept Figure 5 This is a schematic diagram of the internal control circuit of a portable air conditioner according to an exemplary embodiment, such as... Figure 5 As shown, the portable air conditioner includes:

[0101] At least one processor 501, a communication interface 502; and

[0102] Memory 503 communicatively connected to the at least one processor 501;

[0103] The processor 501, communication interface 502, and memory 503 communicate with each other via communication bus 504; the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the above-described method.

[0104] A non-transitory computer-readable storage medium storing computer instructions is shown according to an exemplary embodiment, characterized in that the computer instructions are used to cause a computer to perform the above-described method.

[0105] The computer-readable storage media disclosed in this embodiment include, but are not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this invention, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0106] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0107] It should be noted that in the description of this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Herein, in the description of this invention, unless otherwise stated, "a plurality of" means at least two.

[0108] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of the invention includes implementations thereof in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.

[0109] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0110] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0111] In this invention, the functional units in various embodiments can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0112] The storage media mentioned above can be read-only memory, disk, or optical disk, etc.

[0113] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0114] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pre-warning control method for a portable air conditioner, characterized in that, include: During the operation of the portable air conditioner, if the portable air conditioner has met the preset stable operating conditions, the external pipe temperature data and internal pipe temperature data are acquired according to the preset time period. Based on the time period, determine the external pipe temperature data change parameter value corresponding to the external pipe temperature data, and determine the internal pipe temperature data change parameter value corresponding to the internal pipe temperature data; Based on the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value, the warning category is determined; According to the aforementioned warning category, issue a warning signal; Based on the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value, an early warning category is determined, including: Based on the external pipe temperature data, calculate the external pipe temperature difference between the current time period and the previous time period; and based on the internal pipe temperature data, calculate the internal pipe temperature difference between the current time period and the previous time period. Obtain the normal temperature change values ​​of the outer pipe and the inner pipe when the portable air conditioner is in normal operation; If the following conditions are met simultaneously, the warning category is determined to be the first ordinary warning category: Condition 1: The temperature difference of the outer tube is less than or equal to 0; Condition 2: The temperature difference in the inner tube is less than or equal to 0; Condition 3: The value of the change parameter of the inner tube temperature data is greater than or equal to the product of the first multiple coefficient and the normal change value of the inner tube temperature, and the duration is less than or equal to the first time threshold. Condition 4: Under the premise of satisfying Condition 3, the value of the inner tube temperature data change parameter is within the first preset value range, and the endpoint values ​​of the first preset value range are respectively: the product of the first multiplier coefficient and the normal change value of the inner tube temperature, and the product of the second multiplier coefficient and the normal change value of the inner tube temperature. Wherein, the first multiplier is less than the second multiplier.

2. The method according to claim 1, characterized in that, The method further includes: If the following conditions are met simultaneously, the warning category is determined to be the second ordinary warning category: Condition 1: The temperature difference of the outer tube is greater than 0; Condition 2: The external pipe temperature data change parameter value is within the second preset value range, and the endpoint values ​​of the second preset value range are respectively: the product of the first multiplier coefficient and the normal change value of the external pipe temperature, and the product of the second multiplier coefficient and the normal change value of the external pipe temperature.

3. The method according to claim 1, characterized in that, The method further includes: If the temperature difference of the outer tube is less than or equal to 0 and the temperature difference of the inner tube is greater than 0, then the warning category is determined to be the third ordinary warning category.

4. The method according to claim 1, characterized in that, The method further includes: If the temperature difference of the outer tube is less than or equal to 0, the temperature difference of the inner tube is less than or equal to 0, the temperature change parameter value of the inner tube is less than the product of the first multiplier coefficient and the normal temperature change value of the inner tube, and the duration is greater than the second time threshold, then the warning category is determined to be the fourth ordinary warning category.

5. The method according to claim 1, characterized in that, The method further includes: If the outer tube temperature difference is less than or equal to 0, the inner tube temperature difference is less than or equal to 0, the inner tube temperature data change parameter value is greater than or equal to the product of the first multiplier coefficient and the normal change value of the inner tube temperature and the duration is less than or equal to the first time threshold, and the inner tube temperature data change parameter value is greater than the product of the second multiplier coefficient and the normal change value of the inner tube temperature, then the warning category is determined to be the first emergency warning category.

6. The method according to claim 1, characterized in that, The method further includes: If the external pipe temperature difference value is greater than 0, and the external pipe temperature data change parameter value is greater than or equal to the product of the first multiplier coefficient and the normal change value of the external pipe temperature, and the external pipe temperature data change parameter value is greater than the product of the second multiplier coefficient and the normal change value of the external pipe temperature, then the warning category is determined to be the second emergency warning category.

7. The method according to claim 1, characterized in that, According to the aforementioned warning categories, warning signals are issued, including: According to the warning category, the target device controlling the portable air conditioner issues a warning signal that matches the warning category; wherein the target device includes at least one of the following: a warning signal light and an audio output device.

8. The method according to claim 1, characterized in that, The method further includes: Collect the periodic change rate of the external pipe temperature of the portable air conditioner; If the temperature change rate of the external pipe is less than 0 and the number of cycles is greater than the set threshold, then the portable air conditioner is determined to have met the preset stable operating conditions.

9. A warning control device for a portable air conditioner, characterized in that, Suitable for portable air conditioners, including: The data acquisition unit is used to acquire external pipe temperature data and internal pipe temperature data according to a preset time period during the operation of the portable air conditioner, if the portable air conditioner has met the preset stable operating conditions. The calculation unit is used to determine, based on the time period, the change parameter value of the outer pipe temperature data corresponding to the outer pipe temperature data, and the change parameter value of the inner pipe temperature data corresponding to the inner pipe temperature data; The control unit is used to determine the warning category based on the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value; and to issue a warning signal according to the warning category. Based on the external pipe temperature data, the internal pipe temperature data, the external pipe temperature data change parameter value, and the internal pipe temperature data change parameter value, an early warning category is determined, including: Based on the external pipe temperature data, calculate the external pipe temperature difference between the current time period and the previous time period; and based on the internal pipe temperature data, calculate the internal pipe temperature difference between the current time period and the previous time period. Obtain the normal temperature change values ​​of the outer pipe and the inner pipe when the portable air conditioner is in normal operation; If the following conditions are met simultaneously, the warning category is determined to be the first ordinary warning category: Condition 1: The temperature difference of the outer tube is less than or equal to 0; Condition 2: The temperature difference in the inner tube is less than or equal to 0; Condition 3: The value of the change parameter of the inner tube temperature data is greater than or equal to the product of the first multiple coefficient and the normal change value of the inner tube temperature, and the duration is less than or equal to the first time threshold. Condition 4: Under the premise of satisfying Condition 3, the value of the inner tube temperature data change parameter is within the first preset value range, and the endpoint values ​​of the first preset value range are respectively: the product of the first multiplier coefficient and the normal change value of the inner tube temperature, and the product of the second multiplier coefficient and the normal change value of the inner tube temperature. Wherein, the first multiplier is less than the second multiplier.

10. A portable air conditioner, characterized in that, include: At least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-8.

11. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to perform the method according to any one of claims 1-8.

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