Electric heater safety start-stop regulation control method and system based on diversified analysis

Abstract

The invention relates to the technical field of electric heater control, in particular to an electric heater safety start-stop adjustment control method and system based on diversified analysis, and the system comprises a start-stop control center, a normalization supervision unit, a fault matching unit, a working condition interference unit, a start-stop performance unit, an adjustment planning unit and a regulation feedback unit. According to the method, analysis is preliminarily carried out from the normalized control angle of the target electric heater to judge whether the target electric heater can be normally controlled in a closed-loop mode, analysis is carried out from two points of hardware and software based on an information progressive mode to judge the start-stop adjustment fault type of the target electric heater, and analysis is carried out from the start-stop interference angle to judge whether the target electric heater can be normally controlled in a closed-loop mode or not. Meanwhile, the start-stop delay risk of the target electric heater is reduced along with the start-stop response performance analysis process, and start-stop intelligent adjustment planning processing is carried out on the target electric heater based on normal start-stop, so that damage to elements due to frequent start-stop is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of electric heater control, and particularly to a method and system for safe start-stop regulation control of an electric heater based on diversified analysis. Background Art

[0002] An electric heater is an internationally popular electric heating device used for heating, insulating, and warming flowing liquid or gaseous media. When the heating medium passes through the heating chamber of the electric heater under pressure, it uniformly takes away the huge heat generated during the operation of the electric heating element by using the principle of fluid thermodynamics, so that the temperature of the heated medium reaches the user's process requirements.

[0003] However, in the prior art, it is impossible to conduct safety supervision on the closed-loop control of the electric heater, resulting in ineffective control of the start and stop of the electric heater, increasing the risk of start and stop control of the electric heater. Moreover, it is impossible to analyze the start-stop regulation response performance of the electric heater, which is not conducive to the reasonable planning and management of the subsequent start-stop regulation, and increases the risk of damage to the electric heating element.

[0004] In view of the above technical defects, a solution is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a method and system for safe start-stop regulation control of an electric heater based on diversified analysis to solve the above-mentioned technical defects. The present invention initially analyzes from the perspective of the normal control of the target electric heater to determine whether the target electric heater can perform normal closed-loop control, and analyzes from two aspects of hardware and software based on the information progression method to determine the start-stop regulation fault type of the target electric heater, so as to manage the target electric heater reasonably according to the feedback information. At the same time, it further analyzes from the perspective of start-stop interference to understand whether the current start-stop interference exceeds the standard, so as to clean the temperature probe or water tank of the target electric heater. At the same time, along with the start-stop response performance analysis process, the risk of start-stop delay of the target electric heater is reduced, and intelligent start-stop regulation planning processing is performed on the target electric heater under normal start-stop conditions to avoid frequent start and stop of the target electric heater from damaging the components.

[0006] The purpose of the present invention can be achieved by the following technical solutions: A safe start-stop regulation control system for an electric heater based on diversified analysis includes a start-stop control center, a normal supervision unit, a fault matching unit, a working condition interference unit, a start-stop performance unit, an adjustment planning unit, and a regulation feedback unit.

[0007] The start-stop control center is used to retrieve the number of times corresponding to the abnormal normal control of the target electric heater, and send the number of times corresponding to the abnormal normal control to the normal supervision unit for normal control discrimination analysis to obtain a normal signal or a risk signal. When a risk signal is generated, the fault matching unit is used to perform fault type matching analysis on the hardware diagnosis result and software diagnosis result of the collected target electric heater to obtain other signals, software fault signals, hardware fault signals or double fault signals;

[0008] The working condition interference unit is used to perform regulation control interference analysis on the collected start-stop interference information to obtain a normal signal or a management signal. The start-stop performance unit is used to perform start-stop control accuracy analysis on the collected start-stop information to obtain a performance stable signal or a performance risk signal. When a performance stable signal is generated, the regulation planning unit is used to perform start-stop intelligent regulation planning analysis on the usage information of the collected target electric heater to obtain a heat preservation signal or a standby signal.

[0009] Preferably, the normal control discrimination analysis process is as follows: The energization period of the target electric heater is collected and set as the time threshold. The number of times corresponding to the abnormal normal control of the target electric heater within the time threshold is obtained, and the number of times corresponding to the abnormal normal control of the target electric heater is discriminated to obtain a normal signal or a risk signal

[0010] The abnormal normal control means that the target electric heater cannot achieve closed-loop control during use. Closed-loop control means the process of automatically starting heating when the collected water tank temperature is lower than the set target temperature and stopping heating after reaching the target temperature.

[0011] Preferably, the fault type matching analysis process is as follows: The hardware diagnosis result and software diagnosis result of the target electric heater within the time threshold are obtained. The hardware diagnosis result includes qualified and unqualified, and the software diagnosis result includes normal and abnormal. The output results of the hardware diagnosis result and software diagnosis result are obtained. If the output results are qualified and normal, other signals are generated. If the output results are qualified and abnormal, software fault signals are generated. If the output results are unqualified and normal, hardware fault signals are generated. If the output results are unqualified and abnormal, double fault signals are generated.

[0012] Preferably, the adjustment control interference analysis process is as follows: Obtain the start-stop interference information of the target electric heater within the time threshold. The start-stop interference information includes the scale thickness of the temperature probe and the water tank cleaning frequency, and perform discrimination processing on the start-stop interference information to obtain the number of cases where the discrimination result of the start-stop interference information corresponds to non-conventional. The discrimination result includes conventional and non-conventional. Non-conventional means that the corresponding numerical value of the parameter in the start-stop interference information does not meet the specified requirements, and conventional means that the corresponding numerical value of the parameter in the start-stop interference information meets the specified requirements. Compare and analyze the number of cases where the discrimination result of the start-stop interference information corresponds to non-conventional to obtain a normal signal or a management signal.

[0013] Preferably, the start-stop control accuracy analysis process is as follows: Obtain the start-stop information of the target electric heater within the time threshold. The start-stop information includes a set of start response durations and a set of stop response durations;

[0014] The set of start response durations represents a set constructed by the maximum duration and the minimum duration corresponding to the start time to the start completion time of the target electric heater, and it is marked as start set A; the set of stop response durations represents a set constructed by the maximum duration and the minimum duration corresponding to the start stop time to the stop completion time of the target electric heater, and it is marked as stop set B;

[0015] Obtain the historical start-stop information of the normal target electric heater within the time threshold, obtain the historical set of start response durations and the historical set of stop response durations based on the historical start-stop information, and mark them as historical set Amax and historical set Bmax respectively. Compare and analyze start set A and stop set B with historical set Amax and historical set Bmax to obtain a performance stable signal or a performance risk signal.

[0016] Preferably, the start-stop intelligent adjustment planning analysis process is as follows:

[0017] Obtain the usage information of the target electric heater every day within the past month. The usage information includes usage time periods, usage times, etc. Establish a rectangular coordinate system with the X-axis as time and the Y-axis as the number of times. Plot the curve of the change in the number of usage times in the rectangular coordinate system, and then obtain the curve of the change in the number of usage times corresponding to the target electric heater every day. Perform fitting processing on the curve of the change in the number of usage times, and then obtain the fitting curve of the target electric heater.

[0018] Preferably, obtain the time periods corresponding to the number of usage times exceeding the preset threshold from the fitting curve, and set them as high-frequency time periods. Obtain the time periods corresponding to the number of usage times not exceeding the preset threshold from the fitting curve, and set them as low-frequency time periods;

[0019] Obtain the current period of the target electric heater, and perform matching analysis on the current period of the target electric heater. If the current period belongs to the high-frequency period, generate a heat preservation signal; if the current period belongs to the low-frequency period, generate a standby signal.

[0020] The beneficial effects of the present invention are as follows:

[0021] (1) The present invention initially analyzes from the perspective of the normalized control of the target electric heater to determine whether the target electric heater can be normally closed-loop controlled, so as to rationally manage the target electric heater to ensure the stability of the start-stop adjustment control of the target electric heater. And analyze from two points of hardware and software based on the information progression method to determine the start-stop adjustment fault type of the target electric heater, so as to rationally manage the target electric heater according to the feedback information;

[0022] (2) The present invention further analyzes from the perspective of start-stop interference to understand whether the current start-stop interference exceeds the standard, so as to clean the temperature probe or water tank of the target electric heater to reduce the risk of monitoring error and avoid abnormal start-stop of the target electric heater. At the same time, along with the start-stop response performance analysis process, to reduce the risk of start-stop delay of the target electric heater, and perform start-stop intelligent adjustment planning processing on the target electric heater under normal start-stop to avoid frequent start-stop of the target electric heater from damaging components. Description of the Drawings

[0023] The present invention will be further described below with reference to the accompanying drawings;

[0024] Figure 1 is the system flow block diagram of the present invention;

[0025] Figure 2 is the method reference analysis diagram of the present invention. Detailed Embodiments

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1:

[0028] Please refer to Figures 1 to 2As shown in the figure, the present invention is a safety start-stop regulation control system for an electric heater based on diversified analysis, including a start-stop control center, a normal supervision unit, a fault matching unit, a working condition interference unit, a start-stop performance unit, a regulation planning unit, and a regulation feedback unit. The start-stop control center is unidirectionally communicatively connected to the normal supervision unit. The normal supervision unit is bidirectionally communicatively connected to both the fault matching unit and the working condition interference unit. The normal supervision unit is unidirectionally communicatively connected to both the start-stop performance unit and the regulation feedback unit. The start-stop performance unit is unidirectionally communicatively connected to the regulation planning unit. The regulation planning unit is unidirectionally communicatively connected to the regulation feedback unit;

[0029] The start-stop control center is used to retrieve the number of times corresponding to the normal control abnormality of the target electric heater and send the number of times corresponding to the normal control abnormality to the normal supervision unit. After receiving the number of times corresponding to the normal control abnormality, the normal supervision unit immediately performs a normal control discrimination analysis on the number of times corresponding to the normal control abnormality to determine whether the target electric heater is under normal closed-loop control, so as to perform reasonable management on the target electric heater to ensure the stability of the start-stop regulation control of the target electric heater. The specific normal control discrimination analysis process is as follows:

[0030] Collect the energization period of the target electric heater and set it as the time threshold. Obtain the number of times corresponding to the normal control abnormality of the target electric heater within the time threshold, and perform discrimination processing on the number of times corresponding to the normal control abnormality of the target electric heater:

[0031] If the number of times corresponding to the normal control abnormality of the target electric heater is equal to zero, a normal signal is generated;

[0032] If the number of times corresponding to the normal control abnormality of the target electric heater is not equal to zero, a risk signal is generated. The normal signal or the risk signal is sent to the regulation feedback unit. After receiving the normal signal or the risk signal, the regulation feedback unit immediately displays the preset warning text corresponding to the normal signal or the risk signal, so as to intuitively understand whether the start-stop control of the target electric heater is normal and perform timely warning management on the target electric heater;

[0033] The normal control abnormality means that the target electric heater cannot achieve closed-loop control during use. Closed-loop control means the process of automatically starting heating when the collected water tank temperature is lower than the set target temperature and stopping heating after reaching the target temperature;

[0034] The inability to achieve closed-loop control means that the water tank temperature is lower than the set target temperature and the heater does not start, or the target electric heater automatically starts heating but stops heating before reaching the target temperature, etc.;

[0035] When a risk signal is generated, the fault matching unit is used to respond to the risk signal, collect the hardware diagnosis result and software diagnosis result of the target electric heater, and perform fault type matching analysis on the hardware diagnosis result and software diagnosis result, so as to perform rational management on the target electric heater based on the feedback information, improve the operation safety and stability of the target electric heater. The specific fault type matching analysis process is as follows:

[0036] Obtain the hardware diagnosis result and software diagnosis result of the target electric heater within the time threshold. The hardware diagnosis result includes qualified and unqualified, and the software diagnosis result includes normal and abnormal. Obtain the output result of the hardware diagnosis result and software diagnosis result. If the output result is qualified and normal, generate other signals. If the output result is qualified and abnormal, generate a software fault signal. If the output result is unqualified and normal, generate a hardware fault signal. If the output result is unqualified and abnormal, generate a double fault signal. Send the obtained other signal or software fault signal or hardware fault signal or double fault signal to the normalization supervision unit and then to the regulation feedback unit. After receiving the other signal or software fault signal or hardware fault signal or double fault signal, the regulation feedback unit immediately displays the fault code corresponding to the other signal or software fault signal or hardware fault signal or double fault signal, so as to perform rational management on the target electric heater based on the feedback information, improve the operation safety and stability of the target electric heater;

[0037] Among them, hardware diagnosis includes sensors, heating devices, etc., and software diagnosis includes operating programs, signal networks, etc.

[0038] Embodiment 2:

[0039] When a normal signal is generated, the working condition interference unit is used to perform adjustment control interference analysis on the collected start-stop interference information, so as to clean the temperature probe or water tank of the target electric heater, reduce the risk of monitoring error, and avoid abnormal start-stop of the target electric heater. The specific adjustment control interference analysis process is as follows: Obtain the start-stop interference information of the target electric heater within the time threshold. The start-stop interference information includes the scale thickness of the temperature probe, the water tank cleaning frequency, etc., and perform discrimination processing on the start-stop interference information. Obtain the number of times the discrimination result of the start-stop interference information corresponds to unconventional. The discrimination result includes conventional and unconventional. Unconventional means that the parameter corresponding value in the start-stop interference information does not meet the specified requirements, and conventional means that the parameter corresponding value in the start-stop interference information meets the specified requirements;

[0040] Compare and analyze the number of discriminant results of start-stop interference information corresponding to non-conventional cases. If the number of discriminant results of start-stop interference information corresponding to non-conventional cases is equal to zero, generate a normal signal. If the number of discriminant results of start-stop interference information corresponding to non-conventional cases is not equal to zero, generate a management signal. Send the management signal to the regulation feedback unit through the normalization supervision unit. After receiving the management signal, the regulation feedback unit immediately displays the preset warning text corresponding to the management signal, so as to clean the temperature probe or water tank of the target electric heater, reduce the risk of monitoring error, and avoid abnormal start-stop of the target electric heater;

[0041] When a normal signal is generated, the start-stop performance unit is used to analyze the start-stop control accuracy of the collected start-stop information, so as to manage and optimize the start-stop response performance of the target electric heater, and reduce the risk of start-stop delay of the target electric heater. The specific start-stop control accuracy analysis process is as follows: Obtain the start-stop information of the target electric heater within the time threshold. The start-stop information includes a set of start response durations and a set of stop response durations;

[0042] The set of start response durations represents the set constructed by the maximum duration and the minimum duration corresponding to the start time to the start completion time of the target electric heater, and is marked as start set A; The set of stop response durations represents the set constructed by the maximum duration and the minimum duration corresponding to the start stop time to the stop completion time of the target electric heater, and is marked as stop set B;

[0043] Obtain the historical start-stop information of normal target electric heaters within the time threshold, and obtain the historical start response duration set and the historical stop response duration set based on the historical start-stop information, and mark them as historical set Amax and historical set Bmax respectively;

[0044] Compare and analyze the start set A and the stop set B with the historical set Amax and the historical set Bmax:

[0045] If the start set A is included in the historical set Amax and the stop set B is included in the historical set Bmax, generate a performance stability signal;

[0046] If the start set A is not included in the historical set Amax or the stop set B is not included in the historical set Bmax, generate a performance risk signal. Send the performance stability signal or the performance risk signal to the regulation feedback unit. After receiving the performance stability signal or the performance risk signal, the regulation feedback unit immediately displays the preset warning text corresponding to the performance stability signal or the performance risk signal, so as to manage and optimize the start-stop response performance of the target electric heater, reduce the risk of start-stop delay of the target electric heater, and at the same time help improve the start-stop control accuracy and control effect of the target electric heater;

[0047] When generating a stable performance signal, the regulation planning unit is used to collect the usage information of the target electric heater and perform start-stop intelligent regulation planning analysis on the usage information to avoid frequent start-stop of the target electric heater from damaging components. The specific start-stop intelligent regulation planning analysis process is as follows: Obtain the usage information of the target electric heater every day within the past month. The usage information includes usage time periods, usage frequencies, etc. Establish a rectangular coordinate system with the X-axis as time and the Y-axis as the number of times. Plot the curve of the change in the number of times of use in the rectangular coordinate system, and then obtain the curve of the change in the number of times of use corresponding to the target electric heater every day. Perform fitting processing on the curve of the change in the number of times of use, and then obtain the fitting curve of the target electric heater;

[0048] Obtain the time periods corresponding to the number of times of use exceeding the preset threshold from the fitting curve and set them as high-frequency time periods. Obtain the time periods corresponding to the number of times of use not exceeding the preset threshold from the fitting curve and set them as low-frequency time periods;

[0049] Obtain the current time period of the target electric heater and perform matching analysis on the current time period of the target electric heater. If the current time period belongs to the high-frequency time period, generate a heat preservation signal. If the current time period belongs to the low-frequency time period, generate a standby signal. Send the heat preservation signal or the standby signal to the regulation feedback unit. After receiving the heat preservation signal or the standby signal, the regulation feedback unit immediately performs the preset warning operation corresponding to the heat preservation signal or the standby signal, that is, performs the intelligent constant temperature operation corresponding to the heat preservation signal to maintain the water temperature within the set range, thereby reducing the number of repeated heating start-stops. Perform the shutdown heating corresponding to the standby signal and heat immediately when in use to avoid frequent start-stop of the target electric heater from damaging components.

[0050] Embodiment 3:

[0051] An electric heater safety start-stop regulation control method based on diversified analysis includes the following steps:

[0052] Step 1: The discrimination and processing process of abnormal normal control, that is, perform normal control discrimination analysis on the number of times corresponding to abnormal normal control to obtain a normal signal or a risk signal;

[0053] Step 2: The fault type diagnosis process based on the risk signal, that is, perform fault type matching analysis on the hardware diagnosis result and the software diagnosis result, and output and feedback the obtained other signal, software fault signal, hardware fault signal or double fault signal;

[0054] Step 3: The start-stop interference monitoring and feedback operation based on the normal signal, that is, perform regulation control interference analysis on the start-stop interference information to determine whether the start-stop interference information has too high interference on the start-stop regulation control, and obtain a normal signal or a management signal;

[0055] Step 4: Performance evaluation operation for the start-stop response of the target electric heater, that is, analyze the start-stop control accuracy of the start-stop information to determine whether the start-stop response performance of the current target electric heater needs to be managed to reduce the risk of start-stop delay of the target electric heater;

[0056] Step 5: Start-stop adjustment planning process under the daily use analysis of the target electric heater, that is, analyze the start-stop intelligent adjustment plan of the usage information to obtain the high-frequency period and the low-frequency period, and obtain the heat preservation signal or the standby signal based on the analysis of the high-frequency period and the low-frequency period;

[0057] In summary, the present invention initially analyzes from the perspective of the normalized control of the target electric heater to determine whether the target electric heater can be normally closed-loop controlled, so as to rationally manage the target electric heater to ensure the stability of the start-stop adjustment control of the target electric heater. And analyze from two points of hardware and software based on the way of information progression to determine the start-stop adjustment fault type of the target electric heater, so as to rationally manage the target electric heater according to the feedback information. At the same time, further analyze from the perspective of start-stop interference to understand whether the current start-stop interference exceeds the standard, so as to clean the temperature probe or water tank of the target electric heater to reduce the risk of monitoring error and avoid abnormal start-stop of the target electric heater. At the same time, along with the start-stop response performance analysis process, to reduce the risk of start-stop delay of the target electric heater. And based on the normal start-stop, conduct start-stop intelligent adjustment planning process on the target electric heater to avoid frequent start-stop of the target electric heater from damaging components.

[0058] The setting of the size of the threshold is for the convenience of comparison. Regarding the size of the threshold, it depends on the amount of sample data and the number of base numbers set by those skilled in the art for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0059] The size of the coefficient is a specific value obtained by quantifying each parameter for the convenience of subsequent comparison. Regarding the size of the coefficient, it depends on the amount of sample data and the corresponding operation coefficients initially set by those skilled in the art for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0060] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. The electric heater safety start-stop regulation control system based on diversified analysis is characterized by: It includes a start-stop control center, a normalized supervision unit, a fault matching unit, a working condition interference unit, a start-stop performance unit, an adjustment planning unit, and a control feedback unit; The start-stop control center is used to retrieve the number of normalized control failures corresponding to the target electric heater, and send the number of normalized control failures corresponding to the normalized control failures to the normalized supervision unit for normalized control discrimination analysis to obtain a normal signal or a risk signal. When a risk signal is generated, the fault matching unit is used to perform fault type matching analysis on the collected hardware diagnosis results and software diagnosis results of the target electric heater to obtain other signals or software fault signals or hardware fault signals or dual fault signals. The operating condition interference unit is used to perform adjustment and control interference analysis on the collected start-stop interference information to obtain a conventional signal or a management signal. The start-stop performance unit is used to perform start-stop control accuracy analysis on the collected start-stop information to obtain a performance stability signal or a performance risk signal. When the performance stability signal is generated, the adjustment planning unit is used to perform start-stop intelligent adjustment planning analysis on the collected usage information of the target electric heater to obtain a heat preservation signal or a standby signal.

2. The electric heater safety start-stop regulation and control system based on diversified analysis according to claim 1 is characterized in that: The normalized control discrimination analysis process is as follows: the power-on period of the target electric heater is collected and set as a time threshold, the number of normalized control failures of the target electric heater within the time threshold is obtained, and the number of normalized control failures of the target electric heater is discriminated and processed to obtain a normal signal or a risk signal Normalized control failure means that closed-loop control cannot be achieved during the use of the target electric heater. Closed-loop control means that heating is automatically started when the temperature of the collection water tank is lower than the set target temperature, and heating is stopped after reaching the target temperature.

3. The electric heater safety start-stop regulation and control system based on diversified analysis according to claim 1 is characterized in that: The fault type matching analysis process is as follows: obtaining the hardware diagnosis results and software diagnosis results of the target electric heater within the time threshold, the hardware diagnosis results include qualified and unqualified, and the software diagnosis results include normal and abnormal, obtaining the output results of the hardware diagnosis results and the software diagnosis results, if the output results are qualified and normal, then generating other signals, if the output results are qualified and abnormal, then generating a software fault signal, if the output results are unqualified and normal, then generating a hardware fault signal, if the output results are unqualified and abnormal, then generating a double fault signal.

4. The electric heater safety start-stop regulation and control system based on diversified analysis according to claim 1 is characterized in that: The regulation and control interference analysis process is as follows: obtaining the start and stop interference information of the target electric heater within the time threshold, the start and stop interference information includes the scale thickness of the temperature probe and the water tank cleaning frequency, and performing discrimination processing on the start and stop interference information, and obtaining the discrimination result of the start and stop interference information as the number of unconventional corresponding ones, the discrimination results include conventional and unconventional, unconventional means that the corresponding values ​​of the parameters in the start and stop interference information do not meet the prescribed requirements, conventional means that the corresponding values ​​of the parameters in the start and stop interference information meet the prescribed requirements, and performing comparison and analysis on the number of unconventional corresponding ones of the discrimination result of the start and stop interference information to obtain a conventional signal or a management signal.

5. The electric heater safety start-stop regulation and control system based on diversified analysis according to claim 1 is characterized in that: The start-stop control accuracy analysis process is as follows: acquiring the start-stop information of the target electric heater within the time threshold, the start-stop information including a start response time set and a stop response time set; The start response duration set represents the set constructed by the maximum duration and the minimum duration corresponding to the start time of the target electric heater to the start completion time, which is marked as the start set A; the stop response duration set represents the set constructed by the maximum duration and the minimum duration corresponding to the start stop time of the target electric heater to the stop completion time, which is marked as the stop set B; The historical start and stop information of the normal target electric heater within the time threshold is obtained, and the historical start response duration set and the historical stop response duration set are obtained based on the historical start and stop information, and are marked as historical set Amax and historical set Bmax respectively. The start set A and the stop set B are compared and analyzed with the historical set Amax and the historical set Bmax to obtain a performance stability signal or a performance risk signal.

6. The electric heater safety start-stop regulation and control system based on diversified analysis according to claim 1 is characterized in that: The start-stop intelligent adjustment planning and analysis process is as follows: The usage information of the daily target electric heater within a historical month is obtained, and the usage information includes the usage period, the number of times used, etc. A rectangular coordinate system is established with the X-axis as time and the Y-axis as the number. A usage frequency change curve is drawn in the rectangular coordinate system, and then the usage frequency change curve corresponding to the daily target electric heater is obtained. The usage frequency change curve is fitted to obtain the fitting curve of the target electric heater.

7. The electric heater safety start-stop regulation and control system based on diversified analysis according to claim 6 is characterized in that: Obtain the time period corresponding to the number of times of use exceeding the preset threshold from the fitting curve, and set it as the high-frequency time period; obtain the time period corresponding to the number of times of use not exceeding the preset threshold from the fitting curve, and set it as the low-frequency time period; The current time period of the target electric heater is obtained, and a matching analysis is performed on the current time period of the target electric heater. If the current time period belongs to a high-frequency time period, a heat preservation signal is generated; if the current time period belongs to a low-frequency time period, a standby signal is generated.

8. A method for safely starting and stopping an electric heater based on diversified analysis, the method being applied to the method for safely starting and stopping an electric heater based on diversified analysis as claimed in any one of claims 1 to 7.

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