Monitoring system and early warning method for detecting temperature of water tank through temperature detector

Through the dynamic setting method of time threshold and the adaptive optimization module of heating effect, the problem of inaccurate detection time nodes during the operation of the heating fan is solved, the precise control of the fire water tank temperature is achieved, and the power consumption and equipment damage risk are reduced.

CN120780053APending Publication Date: 2025-10-14ZHENGDA HARBIN IND CO LTD
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Patent Information

Application Number
CN202510918361.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-03
Publication Date
2025-10-14

AI Technical Summary

Technical Problem

In the existing technology, it is impossible to accurately predict the detection time node of the heating fan, which leads to frequent inspections and waste of electricity, increasing the company's operating costs.

Method used

The dynamic setting method of time threshold and the adaptive optimization module of heating effect are used to adjust the detection time threshold and heating time interval, and the operation of the heating fan is optimized by combining the specific heat capacity and power formula.

Benefits of technology

It effectively avoids improper operation of the heating fan, reduces power consumption, ensures that the temperature of the fire water tank is within the appropriate range, and reduces equipment damage and operating costs.

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Abstract

The invention relates to the technical field of water tank temperature monitoring, in particular to a monitoring system for a temperature detector to detect the temperature of a water tank, which comprises an intelligent temperature control core management module, a heating effect self-adaptive optimization module and a temperature abnormity sound-light alarm module, setting a heating time interval A according to a specific heat capacity and power formula; the heating effect self-adaptive optimization module adjusts a heating time interval A to a heating time interval B through a time adjustment method, and outputs a control instruction and the heating time interval B to a heating fan; if the indoor temperature value B is larger than the upper limit of the temperature threshold value, the heating completion time is set as the starting time of the detection time threshold value, and in the northeast cold region, the temperature between the fire water tanks is influenced by various factors such as the outside air temperature and the operation state of a heating fan, and the detection time threshold value is adjusted; and the temperature inspection intelligent scheduling unit closely fits the actual change condition of the indoor temperature.
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Description

Technical Field

[0001] The present invention relates to the technical field of water tank temperature monitoring, and in particular to a monitoring system and an early warning method for detecting the temperature of a water tank by a temperature detector. Background Art

[0002] In terms of fire safety, to effectively reduce the hazards caused by fires, enterprises strictly follow fire protection requirements and generally equip fire water tank rooms. For example, in the Northeast region, the climate is extremely cold in winter, and the water in the fire water tank freezes into ice. Once frozen, it will not only damage the water tank, but also cause the fire protection system to be completely paralyzed due to the lack of water in the event of a fire. To solve this problem, the enterprise has installed a heating fan in the fire water tank room to increase the ambient temperature and prevent the water in the water tank from freezing. The temperature value in the fire water tank room is then manually and regularly tested to determine whether the temperature value meets the temperature threshold. If it is below the lower temperature threshold, the heating fan is started; if it is above the upper temperature threshold, the heating fan is turned off.

[0003] However, during the operation of the heating fan, if the time node for detecting the temperature value and the time node corresponding to the temperature value being greater than the upper limit of the temperature threshold cannot be predicted, the temperature value will be detected regularly according to the time node and the heating fan will be turned off. This will cause the staff to conduct irregular and frequent inspections. At the same time, the heating fan continues to run, and even if the indoor temperature has exceeded the appropriate upper limit, it is still consuming electricity, resulting in a large amount of energy loss that is not necessary for the detection time threshold, increasing the company's operating costs. Over a long period of time, the high electricity bill expenditure will have a significant impact on the company's economic benefits. In view of this, we propose a monitoring system and early warning method for detecting the water tank temperature with a temperature detector. Summary of the Invention

[0004] The present invention aims to address the problem of being unable to predict the critical time points for temperature detection during operation of a heating fan. This results in neither regular temperature detection nor timely shutdown of the heating fan, leading to irregular and frequent inspections by staff. Furthermore, the heating fan continues to operate even when it exceeds the temperature, resulting in significant energy waste, increased operating costs, and, in the long term, high electricity bills that seriously impact economic returns.

[0005] To achieve the above objectives, the present invention provides a monitoring system for detecting the temperature of a water tank using a temperature detector, comprising an intelligent temperature control core management module and a heating effect adaptive optimization module, wherein:

[0006] The detection time threshold is adjusted by a dynamic time threshold setting method, and the heating time interval A is set according to the specific heat capacity and power formula; the heating effect adaptive optimization module adjusts the heating time interval A to the heating time interval B through the time adjustment method, and outputs the control instruction and the heating time interval B to the heating fan; if the indoor temperature value B is greater than the upper limit of the temperature threshold, the heating completion time is set to the starting time of the detection time threshold.

[0007] As a further improvement of this technical solution, the intelligent temperature control core management module includes a temperature inspection intelligent scheduling unit and a heating strategy precise planning unit;

[0008] The temperature inspection intelligent scheduling unit adopts a dynamic time threshold setting method to calculate the temperature drop rate, analyze the changing trend of the temperature drop rate, and adjust the detection time threshold; the heating strategy precise planning unit sets the heating time interval A. If the indoor temperature value A is less than the lower limit of the temperature threshold, the control instruction and heating time interval are output to the heating fan, and the timestamp after heating is marked.

[0009] The beneficial effect of adopting the above further solution is that, in the present invention, in the cold regions of Northeast China, the temperature of the fire water tank room is affected by multiple factors such as the outside temperature and the operating status of the heating fan. By adjusting the detection time threshold, the temperature inspection intelligent scheduling unit is closely adapted to the actual changes in the indoor temperature;

[0010] The heating time interval A set by the heating strategy precision planning unit is the time required for the indoor temperature to rise from the current value A to the upper limit of the temperature threshold, thereby effectively avoiding improper operation of the heating fan, ensuring the appropriate indoor temperature, and preventing damage to facilities such as fire water tanks due to temperature problems.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] As a further improvement of this technical solution, the working principle of the time threshold dynamic setting method in the temperature inspection intelligent scheduling unit is as follows:

[0013] The indoor temperature value of the detected water tank room and the historical detection time threshold are perceived. The time threshold dynamic setting method includes the difference method. The difference method calculates the ratio of the temperature difference between two adjacent time points to the time interval, which represents the temperature drop rate between the two adjacent time points. The specific calculation formula is as follows:

[0014] Perceive two adjacent time points t i and t i+1 , the corresponding indoor temperature values ​​are T i and T i+1 , then the rate of descent r i for:

[0015] As a further improvement of this technical solution, in the temperature inspection intelligent scheduling unit, if n consecutive adjacent drop rates r i The difference between them gradually increases, so the descent rate r i If the indoor temperature value decreases gradually and rapidly, the detection time threshold value is shortened by the constant k1: T new =k1T, where T new is the adjusted detection time threshold; T is the historical detection time threshold;

[0016] If n consecutive adjacent decreasing rates r i The difference between them gradually decreases, so the descent rate r i On a downward trend When , it means that the indoor temperature value drops gradually faster, and the detection time threshold is increased by constant k2: T new =k2T, where T new is the adjusted detection time threshold; T is the historical detection time threshold.

[0017] If there are no consecutive n adjacent decreasing rates r i When the difference between them gradually increases and decreases, the descent rate r is determined. i The trend is stable and the detection time threshold is not adjusted.

[0018] As a further improvement of this technical solution, the working principle of the heating strategy precision planning unit for setting the heating time interval A is as follows:

[0019] Calculate the temperature difference between the indoor temperature value A and the upper temperature threshold: ΔT1 = T 上限 -A; where ΔT1 is the temperature difference, T 上限 is the upper temperature threshold;

[0020] The heat required for heating is calculated using the specific heat capacity formula Q = mcΔT. Since the indoor air mass m is fixed under the same water tank room environment, the heat Q required to raise the indoor temperature from A to the upper temperature threshold is: Q = q × ΔT1;

[0021] Perceive the heating fan output power P1, according to the power formula Calculate heating time interval

[0022] As a further improvement of this technical solution, the working principle of the time adjustment method in the heating effect adaptive optimization module is as follows:

[0023] Calculate the temperature difference between the indoor temperature value B and the indoor temperature value A: ΔT2 = |BA|; the start and stop time difference of the heating fan: Δt = |t stop -sstart |;

[0024] Reverse calculation of the current heating fan power: Calculate the heat Q released when the indoor air changes from temperature A to temperature B according to the specific heat capacity formula in the heating strategy precision planning unit; Given the released heat Q2 = mcΔT and the time Δt = t, substitute them into the power formula to obtain the calculation formula for the heating fan power P:

[0025] The calculated heating fan power P is then input into the heating strategy precise planning unit to calculate the current heating time interval A corresponding to the current heating fan power, and the time difference between the current heating time interval A and the set heating time interval A is calculated, which is the heating time interval B.

[0026] This further solution also ensures that the fire water tank room temperature remains within an appropriate range, preventing freezing of the water in the tanks due to low temperatures, which could impact the fire water supply. Precise heating time interval B allows the heater fan to operate effectively even when power is reduced, ensuring the fire protection system is always operational and reducing the risk of firefighting equipment failure in the event of a fire.

[0027] On the basis of the above technical solution, the present invention can also be improved as follows.

[0028] As a further improvement of the present technical solution, the intelligent temperature control core management module further includes a fan power decay pre-adjustment unit, which is used to set a constant k3 and adjust the heating time interval A calculated by the current heating fan power in the heating effect adaptive optimization module. i :A i =A×k3.

[0029] The beneficial effect of the above further scheme is that since the power of the heating fan decreases after long-term use, the heating effect adaptive optimization module needs to frequently adjust the heating time interval A to cope with it, and the fan power decay pre-adjustment unit estimates the impact of the fan power drop on the heating time interval in advance by setting a constant, and adjusts it once or a small number of times, thereby avoiding the heating effect adaptive optimization module from frequently performing complex calculations and adjustment operations.

[0030] On the basis of the above technical solution, the present invention can also be improved as follows.

[0031] As a further improvement of the present technical solution, it also includes a temperature abnormality sound and light alarm module. The temperature abnormality sound and light alarm module senses the indoor temperature value C after the heating fan has run through the heating time interval B. If the indoor temperature value C is less than the upper limit of the temperature threshold, an sound and light alarm device is used to output an alarm signal.

[0032] The early warning method for detecting the temperature of a water tank by a temperature detector includes the following steps:

[0033] Step 1: Calculate the temperature drop rate using the differential method, set a constant, and calculate the detection time threshold;

[0034] Step 2: Calculate the heating time interval A according to the specific heat capacity formula and power formula;

[0035] Step 3: If the indoor temperature is less than the lower temperature threshold after the heating fan runs in heating time interval A, the heating time interval A is adjusted to heating time interval B again using the specific heat capacity formula and the power formula;

[0036] Step 4: If the indoor temperature value is less than the upper temperature threshold after the heating fan is running within the heating time interval B, an alarm signal is output.

[0037] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is the overall module principle diagram of the present invention;

[0039] Figure 2 This is a flow chart of the working principle of the temperature inspection intelligent scheduling unit of the present invention;

[0040] Figure 3 This is a flow chart of the working principle of the heating strategy precision planning unit of the present invention;

[0041] Figure 4 This is a flow chart of the working principle of the heating effect adaptive optimization module of the present invention;

[0042] Figure 5 This is a flow chart of the working principle of the temperature abnormal sound and light alarm module of the present invention

[0043] Figure 6 It is a schematic diagram of the working steps of the present invention.

[0044] The meaning of each number in the figure is:

[0045] 100. Intelligent temperature control core management module; 110. Temperature inspection intelligent scheduling unit; 120. Heating strategy precise planning unit; 130. Fan power decay pre-adjustment unit; 200. Heating effect adaptive optimization module; 300. Temperature abnormality sound and light alarm module. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0047] A monitoring system for detecting water tank temperature with a temperature detector includes an intelligent temperature control core management module 100, a heating effect adaptive optimization module 200, and a temperature abnormality sound and light alarm module 300, wherein:

[0048] The intelligent temperature control core management module 100 includes a temperature inspection intelligent scheduling unit 110 and a heating strategy precise planning unit 120;

[0049] In order to further reduce the irregular inspection of staff, the indoor temperature value of the water tank room is detected, referring to Figures 1-6 The temperature inspection intelligent scheduling unit 110 uses a time threshold dynamic setting method to adjust the historical detection time threshold, and uses a digital display temperature detector to cyclically detect the indoor temperature value of the water tank room; and the working principle of the time threshold dynamic setting method is as follows:

[0050] The detected indoor temperature value of the water tank room and the historical detection time threshold (the historical detected indoor temperature value of the water tank room when the external environment is below 0°C) are perceived. The time threshold dynamic setting method includes the difference method. Specifically, the difference method calculates the ratio of the temperature difference between two adjacent time points to the time interval to express the temperature drop rate between the two adjacent time points. The specific calculation formula is as follows:

[0051] Perceive two adjacent time points t i (the time point when the indoor temperature value is less than the lower limit of the temperature threshold) and t i+1 (the time point when the indoor temperature value is greater than the upper limit of the temperature threshold), the corresponding indoor temperature values ​​are T i and T i+1 , then the rate of descent r i for:

[0052] Descent rate r i It directly reflects the drop in indoor temperature and provides key data support for setting subsequent detection time thresholds.

[0053] Furthermore, if n consecutive adjacent decreasing rates r i The difference between them gradually increases, so the descent rate r i On an upward trend When the indoor temperature drops, it means that the indoor temperature value is gradually decreasing. For example, the first drop rate is 0.5℃ per hour, the second is 0.7℃ per hour, and the third is 1.0℃ per hour. The difference increases from 0.2℃ to 0.3℃. In this case, the shorter detection time threshold interval can capture the rapid temperature drop more promptly. If the indoor temperature value is still detected according to the longer historical detection time threshold, the critical stage of the rapid temperature drop will be missed, resulting in the water in the fire water tank freezing due to the low temperature.

[0054] At this time, the detection time threshold is shortened by the constant k1: T new =k1T, where T new is the adjusted detection time threshold; T is the historical detection time threshold;

[0055] If n consecutive adjacent decreasing rates r i The difference between them gradually decreases, so the descent rate r i On a downward trend When the indoor temperature drops by 0.5°C per hour, it means that the indoor temperature value is gradually decreasing. For example, the first decrease rate is 1.0°C per hour, the second is 0.8°C per hour, and the third is 0.6°C per hour. At this time, if the indoor temperature value is still frequently detected according to the shorter detection time threshold, because the temperature drop trend has slowed down, there is no need to detect too frequently. Increasing the detection time threshold can reduce the number of detections and reduce energy waste.

[0056] At this time, the detection time threshold is increased by the constant k2: T new =k2T, where T new is the adjusted detection time threshold; T is the historical detection time threshold.

[0057] If there are no consecutive n adjacent decreasing rates r i When the difference between them gradually increases and decreases, for example, the temperature value has been changing at a relatively stable rate of 0.5℃ per hour, then the rate of decrease r is determined to be i If the trend is stable, the detection time threshold will not be adjusted;

[0058] Further, refer to Figure 2-Figure 3 As shown, in order to avoid the heating fan from being started and stopped in time, resulting in the indoor temperature being too low, causing water to freeze, and the heating fan to be damaged by idling for a long time, the heating strategy precise planning unit 120 is used to set the heating time interval A; if the indoor temperature value A is less than the lower limit of the temperature threshold, the control instruction and the heating time interval are output to the heating fan (the heating time interval is used to control the start and stop time of the heating fan), and the heating time stamp is marked;

[0059] The working principle of the heating strategy precision planning unit 120 to set the heating time interval A is as follows: sensing the temperature threshold, calculating the temperature difference between the indoor temperature value A and the upper limit of the temperature threshold: ΔT1 = T 上限 -A; where ΔT1 is the temperature difference, T 上限 is the upper temperature threshold;

[0060] The heat required for heating is calculated using the specific heat capacity formula Q = mcΔT (the indoor air is considered as a whole when calculating the heat required to heat the indoor air), where m is the indoor air mass and c is the air specific heat capacity, c≈1.005 kJ / (kg·°C). Since the indoor air mass m is fixed in the same water tank room environment, the heat required to raise the indoor temperature from A to the upper temperature threshold, Q, is: Q = q × ΔT1.

[0061] Perceive the heating fan output power P1 (the heating fan output power P1 is provided by the heating fan manufacturer), according to the power formula (W is heat and t is time), calculate the heating time interval (where 3600 is the number of seconds in an hour);

[0062] Heating time interval A is the time required for the indoor temperature to rise from the current value A to the upper limit of the temperature threshold, thereby effectively avoiding improper operation of the heating fan, ensuring a suitable indoor temperature, and preventing damage to facilities such as the fire water tank due to temperature problems.

[0063] In the second embodiment, based on the first embodiment, in order to avoid the heating fan output power P decreasing as the use time increases, which causes the heating time interval A set in the heating strategy precise planning unit 120 to be unable to make the indoor temperature value greater than the upper temperature threshold, reference is made to Figure 4 As shown, the difference between this embodiment and the first embodiment is that the heating effect adaptive optimization module 200 senses the indoor temperature value B after heating. If the indoor temperature value B is less than the upper temperature threshold, the time adjustment method is adopted to adjust the heating time interval A to the heating time interval B, and the control instruction and the heating time interval B are output to the heating fan;

[0064] Furthermore, the working principle of the time adjustment method is: if the indoor temperature value B is greater than the upper limit of the temperature threshold, the timestamp after heating is used as the starting time, which is used to adjust the detection time threshold in the temperature inspection intelligent scheduling unit 110 to cyclically detect the starting time of the indoor temperature value of the water tank room, and reasonably arrange the time point of temperature detection to avoid unnecessary detection periods of the temperature inspection intelligent scheduling unit 110, thereby improving the pertinence and efficiency of the detection of the temperature inspection intelligent scheduling unit 110. For example, if the detection start time is not adjusted according to the heating completion time, the detection may be performed when the heating has just been completed and the temperature has not yet stabilized, resulting in inaccurate detection results and waste of system resources.

[0065] Specifically, the calculation formula of the heating time interval B in the heating effect adaptive optimization module 200 is as follows: Calculate the temperature difference between the indoor temperature value B and the indoor temperature value A: ΔT2 = |BA|; The start and stop time difference of the heating fan: Δt = |t stop -s start |;

[0066] Reverse calculation of the current power of the heating fan: Calculate the heat Q released when the indoor air changes from temperature A to temperature B according to the specific heat capacity formula in the heating strategy precision planning unit 120; (where P is power, Q is heat, and t is time). Given the released heat Q2 = mcΔT and time Δt = t, substitute this into the power formula to obtain the calculation formula for the heating fan power P:

[0067] The calculated heating fan power P is then input into the heating strategy precise planning unit 120 to calculate the current heating time interval A corresponding to the current heating fan power, and the time difference between the current heating time interval A and the set heating time interval A is calculated as the heating time interval B;

[0068] By timely adjusting the heating time interval and the detection start time, the heating effect adaptive optimization module 200 reduces fluctuations that may be caused by improper temperature control and unreasonable detection. The stable temperature environment helps to extend the service life of the fire water tank and related equipment and reduce the probability of equipment failure, thereby enhancing the stability and reliability of the temperature control system of the entire fire water tank room and providing strong support for the company's safe production.

[0069] Furthermore, as the heating fan is used for a long time, its output power will inevitably decrease. If the heating time interval A is frequently adjusted by the heating effect adaptive optimization module 200, it will be in a high-load operation state for a long time, resulting in a reduction in service life. Figure 4 As shown, the intelligent temperature control core management module 100 also includes a fan power decay pre-adjustment unit 130, which is used to set a constant k3 (the constant k3 is determined by the difference between the reverse calculated heating fan power and the last calculated heating fan power. The larger the difference, the more serious the loss of the heating fan during use. At this time, the larger the constant k3 is relative to the constant k3 with a smaller difference, the greater the constant k3 is, and the longer the heating time interval A is. i time is short, resulting in unstable heating), adjust the heating time interval A calculated by the current heating fan power in the heating effect adaptive optimization module 200 i :A i=A×k3; The fan power decay pre-adjustment unit 130 calculates A i , estimate the impact of the decrease in heating fan power in advance, adjust the heating time interval once or a small number of times, and avoid frequent complex calculations and adjustment operations by the heating effect adaptive optimization module 200.

[0070] For further reference, Figure 5 As shown, the temperature abnormal sound and light alarm module 300 senses the indoor temperature value C after the heating fan has been running for the heating time interval B. If the indoor temperature value C is less than the upper temperature threshold, the sound and light alarm device is used to output an alarm signal;

[0071] Example:

[0072] When the temperature detector detects that the ambient temperature is lower than 5 degrees (lower limit of temperature threshold), the heating fan starts to heat for 1 hour (heating time interval A). After heating is completed, the system detects again whether the ambient temperature exceeds 10 degrees (upper limit of temperature threshold). If it exceeds 10 degrees, it will be detected after 30 minutes (detection time threshold). If it does not exceed, the system will start the heating fan for a second heating for 2 hours (heating time interval B). After heating is completed, the ambient temperature is detected (indoor temperature value C). If it exceeds 10 degrees, it will be detected after 30 minutes. If it does not exceed 10 degrees, the temperature abnormality sound and light alarm module 300 will alarm.

[0073] refer to Figure 6 As shown, the early warning method for detecting the water tank temperature by a temperature detector includes the following steps:

[0074] Step 1: Calculate the temperature drop rate using the differential method, set a constant, and calculate the detection time threshold;

[0075] Step 2: Calculate the heating time interval A according to the specific heat capacity formula and power formula;

[0076] Step 3: If the indoor temperature is less than the lower temperature threshold after the heating fan runs in heating time interval A, the heating time interval A is adjusted to heating time interval B again using the specific heat capacity formula and the power formula;

[0077] Step 4: If the indoor temperature value is less than the upper temperature threshold after the heating fan is running within the heating time interval B, an alarm signal is output.

[0078] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A monitoring system for detecting water tank temperature using a temperature detector, characterized in that: It includes an intelligent temperature control core management module (100) and a heating effect adaptive optimization module (200), wherein: The intelligent temperature control core management module (100) uses a time threshold dynamic setting method to adjust the detection time threshold, and sets the heating time interval A according to the specific heat capacity and power formula; the heating effect adaptive optimization module (200) adjusts the heating time interval A to the heating time interval B through the time adjustment method, and outputs a control instruction and the heating time interval B to the heating fan; if the indoor temperature value B is greater than the upper limit of the temperature threshold, the heating completion time is set to the start time of the detection time threshold.

2. The monitoring system for detecting water tank temperature using a temperature detector according to claim 1, characterized in that: The intelligent temperature control core management module (100) includes a temperature inspection intelligent scheduling unit (110) and a heating strategy precise planning unit (120); The temperature inspection intelligent scheduling unit (110) adopts a time threshold dynamic setting method to calculate the temperature drop rate, analyze the change trend of the temperature drop rate, and adjust the detection time threshold; the heating strategy precise planning unit (120) sets the heating time interval A, and if the indoor temperature value A is less than the lower limit of the temperature threshold, outputs the control instruction and the heating time interval to the heating fan, and marks the time stamp after heating.

3. The monitoring system for detecting water tank temperature using a temperature detector according to claim 2, characterized in that: The working principle of the time threshold dynamic setting method in the temperature inspection intelligent scheduling unit (110) is as follows: The indoor temperature value of the detected water tank room and the historical detection time threshold are perceived. The time threshold dynamic setting method includes the difference method. The difference method calculates the ratio of the temperature difference between two adjacent time points to the time interval, which represents the temperature drop rate between the two adjacent time points. The specific calculation formula is as follows: Perceive two adjacent time points t i and t i+1 , the corresponding indoor temperature values ​​are T i and T i+1 , then the rate of descent r i for:

4. The monitoring system for detecting water tank temperature using a temperature detector according to claim 3, characterized in that: In the temperature inspection intelligent scheduling unit (110), if n consecutive adjacent drop rates r i The difference between them gradually increases, so the descent rate r i If the indoor temperature value decreases gradually and rapidly, the detection time threshold value is shortened by the constant k1: T new =k1T, where T new is the adjusted detection time threshold; T is the historical detection time threshold; If n consecutive adjacent decreasing rates r i The difference between them gradually decreases, so the descent rate r i On a downward trend When , it means that the indoor temperature value drops gradually faster, and the detection time threshold is increased by constant k2: T new =k2T, where T new is the adjusted detection time threshold; T is the historical detection time threshold; if there are no consecutive n adjacent decreasing rates r i When the difference between them gradually increases and decreases, the descent rate r is determined. i The trend is stable and the detection time threshold is not adjusted.

5. The monitoring system for detecting water tank temperature using a temperature detector according to claim 3, characterized in that: The working principle of the heating strategy precision planning unit (120) for setting the heating time interval A is as follows: Calculate the temperature difference between the indoor temperature value A and the upper temperature threshold: ΔT1 = T 上限 -A; where ΔT1 is the temperature difference, T 上限 is the upper temperature threshold; The heat required for heating is calculated using the specific heat capacity formula Q = mcΔT. Since the indoor air mass m is fixed under the same water tank room environment, the heat Q required to raise the indoor temperature from A to the upper temperature threshold is: Q = q × ΔT1; Perceive the heating fan output power P1, according to the power formula Calculate heating time interval 6. The monitoring system for detecting water tank temperature using a temperature detector according to claim 4, characterized in that: The working principle of the time adjustment method in the heating effect adaptive optimization module (200) is: Calculate the temperature difference between the indoor temperature value B and the indoor temperature value A: ΔT2 = |BA|; the start and stop time difference of the heating fan: Δt = |t stop -s start |; Reverse calculation of the current power of the heating fan: Calculate the heat Q released when the indoor air changes from temperature A to temperature B according to the specific heat capacity formula in the heating strategy precision planning unit (120); Calculate the heat Q released when the indoor air changes from temperature A to temperature B according to the power formula Given the released heat Q2 = mcΔT and the time Δt = t, substitute them into the power formula to obtain the calculation formula for the heating fan power P: The calculated heating fan power P is then input into the heating strategy precision planning unit (120) to calculate the current heating time interval A corresponding to the current heating fan power, and the time difference between the current heating time interval A and the set heating time interval A is calculated, which is the heating time interval B.

7. The monitoring system for detecting water tank temperature using a temperature detector according to claim 6, characterized in that: The intelligent temperature control core management module (100) further includes a fan power decay pre-adjustment unit (130), wherein the fan power decay pre-adjustment unit (130) is used to set a constant k3 and adjust the heating time interval A calculated by the current heating fan power in the heating effect adaptive optimization module (200). i :A i =A×k3.

8. The monitoring system for detecting water tank temperature using a temperature detector according to claim 1, characterized in that: The device also includes a temperature abnormality sound and light alarm module (300), which senses the indoor temperature value C detected after the heating fan has been running for a heating time interval B. If the indoor temperature value C is less than the upper temperature threshold, an sound and light alarm device is used to output an alarm signal.

9. An early warning method for detecting water tank temperature using a temperature detector, applied to a monitoring system for detecting water tank temperature using a temperature detector as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Calculate the temperature drop rate using the differential method, set a constant, and calculate the detection time threshold; Step 2: Calculate the heating time interval A according to the specific heat capacity formula and power formula; Step 3: If the indoor temperature is less than the lower temperature threshold after the heating fan runs in heating time interval A, the heating time interval A is adjusted to heating time interval B again using the specific heat capacity formula and the power formula; Step 4: If the indoor temperature value is less than the upper temperature threshold after the heating fan is running within the heating time interval B, an alarm signal is output.

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