High temperature alarm system and method based on thermoelectric potential driving

Abstract

The invention relates to a high-temperature alarm system and method based on thermoelectric potential driving, and the system employs the temperature difference of a monitored target as an energy source, directly converts heat energy into working electric energy through a thermoelectric power generation module, and supplies power to a temperature monitoring module, a control module and an alarm module in a unified manner. According to the design, the dependence on a traditional external power supply is fundamentally abandoned, and a series of root problems that the power supply stability of an existing high-temperature alarm system is difficult to guarantee in fields, mobile facilities, areas without power grids and the like, the access cost is high, the battery maintenance is frequent and the like are solved. The alarm system can stably work in any place with temperature difference for a long time, and the application range and the reliability of the alarm system are greatly expanded.

Description

Technical Field

[0001] This invention relates to the field of temperature monitoring technology, and in particular to a high-temperature alarm system and method based on thermoelectric potential. Background Technology

[0002] In industrial production, equipment maintenance, and safety monitoring, abnormal high temperatures are a key risk factor causing equipment failure, fires, and even personal injury. Traditional high-temperature alarm systems primarily rely on external power supplies and monitor the target temperature in real time using independent temperature sensing elements such as thermocouples, infrared sensors, or semiconductor temperature sensors, transmitting the temperature signal to a central controller. When the temperature exceeds a preset threshold, the controller triggers an audible and visual alarm to issue a high-temperature warning. While such systems can achieve basic high-temperature monitoring functions, they have the following limitations:

[0003] (1) Traditional systems require external mains power or regular battery replacement, making it difficult to guarantee power supply stability in outdoor equipment, mobile facilities, or scenarios with weak power infrastructure. For example, in applications such as transmission line towers, oil pipeline monitoring, or forest fire prevention, the cost of accessing external power sources is high and they are susceptible to environmental damage, while battery power supply faces problems such as short battery life and frequent maintenance.

[0004] (2) Temperature sensors are susceptible to interference from environmental parameters (such as ambient temperature and humidity), which can lead to a decrease in temperature measurement accuracy and thus cause false alarms or missed alarms.

[0005] (3) Existing systems typically use fixed thresholds to trigger alarms, which cannot provide differentiated responses based on temperature change trends or hazard levels, resulting in wasted maintenance resources or delayed emergency response. Summary of the Invention

[0006] To at least partially solve one of the aforementioned technical problems, this invention proposes a high-temperature alarm system and method based on thermoelectric potential drive that can stably achieve self-powered operation and has strong adaptability.

[0007] Firstly, the technical solution provided in this application includes:

[0008] A high-temperature alarm system based on thermoelectric potential driving includes:

[0009] The thermoelectric power generation module includes a hot end, a cold end, and a thermoelectric material layer. The hot end is used to contact the monitoring target, the cold end is used to exchange heat with the environment, and the thermoelectric power generation module uses the temperature difference between the hot end and the cold end to generate working power.

[0010] A temperature monitoring module, which is thermally coupled to the thermoelectric generator module, is used to detect the temperature of the hot end and generate a temperature signal.

[0011] The control module is used to receive the temperature signal and output alarm information;

[0012] The alarm module is used to receive the alarm information and perform alarm actions;

[0013] The temperature monitoring module, control module, and alarm module are all powered by the operating power generated by the thermoelectric generator module.

[0014] Furthermore, the temperature monitoring module includes a contact temperature sensing unit, the detection end of which is fixedly connected to the hot end of the thermoelectric power generation module.

[0015] The control module is communicatively connected to the contact temperature sensing unit. The control module is configured to adjust the temperature sampling frequency f of the contact temperature sensing unit according to a preset instruction. The adjustment range of the sampling frequency f satisfies 1Hz≤f≤10Hz.

[0016] Furthermore, the temperature monitoring module also includes an environmental parameter sensing unit, which is used to collect ambient temperature data. With ambient humidity H;

[0017] The control module has built-in temperature signal compensation logic. The temperature signal compensation logic corrects the initial temperature signal T0 generated by the temperature monitoring module using formula (1) to obtain the corrected temperature signal T:

[0018] (1)

[0019] Where k1 is the ambient temperature correction factor, 0.02≤k1≤0.05; k2 is the ambient humidity correction factor, 0.01≤k2≤0.03.

[0020] Furthermore, the control module incorporates multi-level temperature judgment thresholds, including early warning thresholds. Alarm threshold and emergency alarm threshold And satisfy =0.8 ~0.9 , =1.1 ~1.2 The control module is configured to: connect the temperature signal output by the temperature monitoring module with... , , Compare the data separately and output the corresponding alarm control commands.

[0021] Furthermore, the control module also incorporates a temperature change rate calculation logic, which calculates the rate of change of the hot end temperature using formula (2). :

[0022] (2)

[0023] in, For the temperature signal sampled at the nth time, This is the temperature signal from the (n-1)th sample. The time interval between two samplings; when >3℃ / min and < When the control module triggers the warning threshold, The corresponding alarm control commands.

[0024] Furthermore, the control module also includes a signal anti-interference processing unit, which uses an IIR low-pass filtering algorithm to filter the temperature signal output by the temperature monitoring module. The transfer function of the IIR low-pass filtering algorithm satisfies formula (3):

[0025] (3)

[0026] in, , , These are the filter numerator coefficients. , The coefficients in the denominator of the filter are 0 < 0. < < <1, 0< < <1.

[0027] Furthermore, the alarm module includes a tiered audible and visual alarm unit, which is communicatively connected to the control module. The tiered audible and visual alarm unit is configured to: when receiving an alarm control command corresponding to a warning threshold, output a flashing light with a frequency of 1Hz to 2Hz and a prompting sound with a frequency of 30dB to 50dB; when receiving an alarm control command corresponding to an emergency alarm threshold, output a flashing light with a frequency of 5Hz to 8Hz and a prompting sound with a frequency of 70dB to 90dB.

[0028] Furthermore, it also includes a remote information interaction module, which is electrically connected to the control module and powered by the thermoelectric generator module; the control module is configured to transmit alarm information and real-time temperature data of the hot end to the user terminal through the remote information interaction module while outputting alarm information.

[0029] Furthermore, the user terminal includes an operation and maintenance terminal and a management terminal; the control module has built-in information classification and transmission logic, which is configured to: transmit alarm trigger time and hot end temperature change curve to the operation and maintenance terminal, and transmit the total number of alarms within the period and the proportion of alarms of each level to the management terminal.

[0030] Secondly, the technical solution provided in this application includes:

[0031] A high-temperature alarm method based on thermoelectric potential includes the following steps:

[0032] S1: Utilizes the heat emitted by the monitored target to generate working electrical energy;

[0033] S2: Detects the temperature of the target and generates a temperature signal;

[0034] S3: After processing the temperature signal, determine whether the alarm conditions are met; if the alarm conditions are met, output an alarm signal.

[0035] S4: Execute the alarm action according to the alarm signal;

[0036] During the execution of steps S2 to S4, the working electrical energy generated in step S1 drives the process.

[0037] The technical solution provided in this application has at least the following advantages over the prior art:

[0038] This application utilizes the temperature difference of the monitored target itself as an energy source, directly converting thermal energy into working electrical energy through a thermoelectric generator module, and providing unified power to the temperature monitoring module, control module, and alarm module. This design fundamentally eliminates reliance on traditional external power sources (mains power or batteries), solving a series of root problems in existing technologies, such as difficulty in ensuring power supply stability in the field, mobile facilities, and areas without power grids, high access costs, and frequent battery maintenance. This enables the alarm system to operate stably and continuously in any location with temperature differences, greatly expanding its application scope and reliability. Attached Figure Description

[0039] Figure 1 This is a structural diagram of a high-temperature alarm system driven by thermoelectric potential, as shown in some embodiments of this application.

[0040] Figure 2 This is an exemplary flowchart of a high-temperature alarm method based on thermoelectric potential driven according to some embodiments of this application; Detailed Implementation

[0041] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0042] This specific embodiment is merely an explanation of this application and is not intended to limit it. Those skilled in the art, after reading this specification, can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application. To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0043] The term "comprising" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0044] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0045] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0046] Figure 1 This application illustrates an exemplary embodiment of a high-temperature alarm system based on thermoelectric potential, comprising:

[0047] The thermoelectric power generation module includes a hot end, a cold end, and a thermoelectric material layer. The hot end is used to contact the monitoring target, the cold end is used to exchange heat with the environment, and the thermoelectric power generation module uses the temperature difference between the hot end and the cold end to generate working power.

[0048] A temperature monitoring module, which is thermally coupled to the thermoelectric generator module, is used to detect the temperature of the hot end and generate a temperature signal.

[0049] The control module is used to receive the temperature signal and output alarm information;

[0050] The alarm module is used to receive the alarm information and perform alarm actions;

[0051] The temperature monitoring module, control module, and alarm module are all powered by the operating power generated by the thermoelectric generator module.

[0052] This embodiment utilizes the temperature difference of the monitored target itself as an energy source, directly converting thermal energy into electrical energy through a thermoelectric generator module, which then powers the temperature monitoring module, control module, and alarm module. This design fundamentally eliminates reliance on traditional external power sources (mains or batteries), solving a series of root causes of existing technologies, such as unreliable power supply stability in outdoor environments, mobile facilities, and areas without power grids, high connection costs, and frequent battery maintenance. This enables the alarm system to operate stably and continuously in any location with temperature differences, greatly expanding its application scope and reliability.

[0053] In some embodiments, the temperature monitoring module includes a contact temperature sensing unit, the detection end of which is fixedly connected to the hot end of the thermoelectric generator module; the control module is communicatively connected to the contact temperature sensing unit, and the control module is configured to: adjust the temperature sampling frequency f of the contact temperature sensing unit according to a preset instruction, wherein the adjustment range of the sampling frequency f satisfies 1Hz≤f≤10Hz.

[0054] In this embodiment, the detection end of the contact temperature sensing unit is fixedly connected to the hot end of the thermoelectric generator module, which can directly and synchronously sense the temperature of the hot end. The hot end is in direct contact with the monitoring target, and its temperature change is completely synchronized with the actual temperature change of the monitoring target, realizing the synchronous acquisition of temperature signal and monitoring target without delay, eliminating alarm deviation caused by temperature measurement lag.

[0055] In this embodiment, the control module can adjust the sampling frequency f (1Hz≤f≤10Hz) according to preset instructions. This can ensure monitoring sensitivity with high-frequency sampling in high-risk scenarios and reduce power consumption with low-frequency sampling in low-risk scenarios, thereby reducing the power consumption of the thermoelectric generator module and avoiding the power waste caused by the traditional fixed high-frequency sampling method or the untimely monitoring caused by the fixed low-frequency sampling method.

[0056] In this system, the corresponding relationship between "monitoring scenario type and sampling frequency" can be pre-stored. During the system installation phase, matching instructions are triggered based on the inherent attributes of the monitoring target (such as risk level, temperature change pattern, etc.) to achieve standardized configuration of the sampling frequency, eliminating the need for manual adjustment later.

[0057] For example, monitoring scenarios can be categorized into high-risk rapid change, medium-risk stable change, low-risk slow change, and dynamic risk. The inherent attributes of high-risk rapid change scenarios are a high probability of sudden temperature rise and significant overheating hazards. The inherent attributes of medium-risk stable change scenarios are slow temperature fluctuations and a moderate risk of overheating. The inherent attributes of low-risk slow change scenarios are stable temperature and a low probability of overheating. The inherent attribute of dynamic risk scenarios is temperature changes that vary with operating conditions. Therefore, the sampling frequency for high-risk rapid change scenarios can be set to a high-frequency band (7Hz-10Hz), the sampling frequency for medium-risk stable change scenarios can be set to a medium-frequency band (3Hz-6Hz), and the sampling frequency for low-risk slow change scenarios can be set to a low-frequency band (1Hz-2Hz). Dynamic risk scenarios can be set to dual-frequency bands (e.g., low-frequency band for low operating conditions and medium-frequency band for high operating conditions).

[0058] In some embodiments, the temperature monitoring module further includes an environmental parameter sensing unit, which is used to collect ambient temperature data. With ambient humidity H;

[0059] The control module has built-in temperature signal compensation logic. The temperature signal compensation logic corrects the initial temperature signal T0 generated by the temperature monitoring module using formula (1) to obtain the corrected temperature signal T:

[0060] (1)

[0061] Where k1 is the ambient temperature correction factor, 0.02≤k1≤0.05; k2 is the ambient humidity correction factor, 0.01≤k2≤0.03.

[0062] In traditional high-temperature alarm systems, temperature sensors are easily affected by ambient temperature and humidity, leading to inaccurate temperature measurements and false or missed alarms. This embodiment, however, uses an environmental parameter sensing unit to collect ambient temperature and humidity in real time and employs temperature signal compensation logic to correct the initial temperature signal. This effectively eliminates the influence of environmental factors on temperature measurement, significantly improving accuracy and providing a more reliable data foundation for high-temperature alarms.

[0063] In complex and variable environmental conditions, fluctuations in ambient temperature and humidity can significantly interfere with the temperature monitoring module, affecting the stable operation of the system. By introducing an environmental parameter compensation mechanism, the system can automatically adapt to different environmental conditions, maintaining the stability and consistency of temperature measurements. Even with significant changes in environmental parameters, the system can still accurately measure the temperature and promptly issue alarm signals, enhancing the stability and reliability of the entire high-temperature alarm system.

[0064] Accurate high-temperature alarms are crucial for ensuring industrial production, equipment operation and maintenance, and safety monitoring. Because this embodiment provides more precise temperature measurements, it avoids false alarms and missed alarms caused by environmental interference. Reducing false alarms prevents unnecessary waste of maintenance resources and improves work efficiency; avoiding missed alarms enables the timely detection of potential high-temperature hazards, allowing for effective emergency measures to prevent equipment failures, fires, and other safety accidents, thus protecting personnel and property.

[0065] In some embodiments, the control module incorporates multi-level temperature judgment thresholds, including an early warning threshold. Alarm threshold and emergency alarm threshold And satisfy =0.8 ~0.9 , =1.1 ~1.2 The control module is configured to: connect the temperature signal output by the temperature monitoring module with... , , Compare the data separately and output the corresponding alarm control commands.

[0066] Among them, the traditional single threshold solution has two types of problems: 1. Waste of operation and maintenance resources: mild high temperature (such as T close to However, it did not exceed the trigger and severe high temperature (T far exceeded) 1) Alarms of the same intensity lead to frequent responses from maintenance personnel to low-risk alarms, wasting human resources; 2) Emergency response delay: Temperatures far exceed... (as Da) Even if the alarm reaches 120% of the maximum, it may only trigger a regular alarm. This may be because the alarm intensity is insufficient, which may lead to the maintenance personnel not being able to take timely emergency measures and thus amplify the impact of the fault.

[0067] In this embodiment, an early warning threshold is introduced. The system can operate at temperatures close to truly dangerous levels. Early warnings are issued beforehand. This provides maintenance personnel with valuable buffer time to intervene and inspect, thus having the opportunity to nip faults in the bud, shifting from "post-incident alerts" to "pre-incident warnings," greatly improving the proactivity of safety management. It achieves early risk identification and proactive warning. Furthermore, by introducing emergency alarm thresholds... This can demonstrate the severity of the equipment overheating.

[0068] In addition, different levels of alarms can trigger different response processes (such as logging warnings, sending SMS messages for alarms, and making direct phone calls for emergency alarms), thereby helping the operations and maintenance team to handle faults in a hierarchical and classified manner, prioritize the most urgent events, and significantly improve operations and maintenance efficiency and management sophistication.

[0069] In some embodiments, the control module also incorporates temperature change rate calculation logic, which calculates the rate of change of the hot end temperature using formula (2). :

[0070] (2)

[0071] in, For the temperature signal sampled at the nth time, This is the temperature signal from the (n-1)th sample. The time interval between two samplings; when >3℃ / min and < When the control module triggers the warning threshold, The corresponding alarm control commands.

[0072] Specifically, traditional high-temperature alarm systems rely solely on comparing the current temperature value with a threshold to determine risk, resulting in a lag in response to rapid temperature rise risks. This embodiment introduces the identification of temperature change rate, supplementing the "temperature value" judgment dimension with "temperature change trend," thus upgrading from "passively responding to temperatures that have reached the threshold" to "actively predicting risks that have not reached the threshold but are rapidly approaching it." Through the temperature rise rate threshold standard, it accurately identifies high-risk scenarios where "the temperature is low but rises rapidly," triggering early warnings and giving maintenance personnel more time for emergency response, avoiding missed fault detections due to "values ​​not reaching the threshold but dangerous trends."

[0073] This embodiment can detect the risk of rapid temperature rise in advance, significantly extending the emergency response window; for example, even if the temperature has not reached the warning threshold. However, even as the temperature rises rapidly, the control module will still issue an alarm signal to warn maintenance personnel in advance so that they can take appropriate measures. In practical applications, this design can significantly improve the "success rate of emergency response" for high-temperature faults and effectively avoid irreversible damage to equipment caused by excessively rapid temperature rise (such as burnt-out motor windings or chip breakdown).

[0074] In some embodiments, the control module further includes a signal anti-interference processing unit, which uses an IIR low-pass filtering algorithm to filter the temperature signal output by the temperature monitoring module. The transfer function of the IIR low-pass filtering algorithm satisfies formula (3):

[0075] (3)

[0076] in, , , These are the filter numerator coefficients. , The coefficients in the denominator of the filter are 0 < 0. < < <1, 0< < <1.

[0077] In industrial environments, electromagnetic interference, power supply noise, and momentary poor contact can generate high-frequency spikes and random noise in the sensor's raw signal. The IIR low-pass filtering algorithm used in this embodiment allows low-frequency signals (representing real, slowly changing temperature) to pass through while significantly attenuating high-frequency noise. After filtering, the signal input to the control module is a smooth and stable temperature curve, fundamentally eliminating false triggers and false alarms caused by noise fluctuations and greatly improving system reliability.

[0078] The control module of the thermoelectric power generation system has limited computing power and electrical energy. Traditional complex filtering algorithms (such as Kalman filtering and wavelet filtering) require a large number of matrix operations, with a single frame signal processing energy consumption of >100μA and excessive computing resources, which may affect the real-time performance of threshold determination. This embodiment adopts the IIR low-pass filtering algorithm, which only requires addition, subtraction and multiplication operations (without complex matrix or integration operations). The single frame signal processing energy consumption is <20μA, which is only 1 / 5 of that of traditional complex algorithms, and will not increase the power supply pressure on the thermoelectric power generation module. Even in low temperature difference scenarios where the output current of the thermoelectric power generation module is <100μA, this IIR low-pass filtering algorithm can still operate stably, ensuring uninterrupted temperature signal processing and guaranteeing the real-time response of the system to temperature changes.

[0079] Furthermore, traditional filtering schemes, in pursuit of anti-interference effects, often result in excessive delays in temperature signals. For example, when the actual temperature rises sharply, mean filtering requires 3-5 sampling cycles to output the true temperature, which may cause the control module to miss the alarm opportunity. In this embodiment, coefficient constraints (0 < 0) are used to address this issue. < < <1, 0< < <1), to achieve a balance between filtering and response.

[0080] Thus, this embodiment, through IIR low-pass filtering design and adaptive coefficient adjustment, not only solves the technical defects of traditional anti-interference schemes, but also fits the computing power and energy consumption constraints of the thermoelectric self-powered system, forming a synergistic advantage in temperature signal stability, real-time performance and system adaptability, providing core support for the accuracy of subsequent threshold determination, and significantly improving the reliability of the high temperature alarm system in complex industrial environments.

[0081] In some embodiments, the alarm module includes a hierarchical audible and visual alarm unit, which is communicatively connected to the control module. The hierarchical audible and visual alarm unit is configured to: when receiving an alarm control command corresponding to a warning threshold, output a flashing light with a frequency of 1Hz to 2Hz and a prompting sound of 30dB to 50dB; when receiving an alarm control command corresponding to an emergency alarm threshold, output a flashing light with a frequency of 5Hz to 8Hz and a prompting sound of 70dB to 90dB.

[0082] This embodiment can intuitively distinguish risk levels and improve the efficiency of on-site risk identification. In traditional single-intensity alarm schemes, regardless of whether the risk is a mild warning or an emergency overheating, the same intensity of audible and visual alerts are output. If there are multiple high-temperature alarms on-site at the same time, maintenance personnel cannot quickly distinguish which risk is more urgent. They may delay the handling of high-risk issues due to prioritizing the handling of low-risk issues, leading to the expansion of the fault.

[0083] In addition, this embodiment is adapted to self-powered characteristics, reducing unnecessary energy consumption and waste; the power output of the thermoelectric power generation system is limited, and if the traditional single high-intensity alarm is frequently triggered, it will continuously consume a large amount of power; this embodiment reduces unnecessary energy consumption through "graded energy consumption control".

[0084] In some embodiments, a remote information interaction module is further included, which is electrically connected to the control module and powered by the thermoelectric generator module; the control module is configured to transmit alarm information and real-time temperature data of the hot end to the user terminal through the remote information interaction module while outputting alarm information.

[0085] Traditional alarm methods are often limited to on-site audio and visual alerts. If no one is on-site or personnel fail to notice the alarm signals in time, problems may not be addressed promptly. However, the addition of a remote information interaction module allows the control module to simultaneously output alarm information and rapidly transmit it to the user terminal. Regardless of the user's location, as long as there is network coverage, they can receive alarm notifications immediately. For example, in industrial production, equipment managers may not be physically present in the workshop, but they can still receive alarm information about abnormal equipment temperatures through user terminals such as mobile phones, enabling them to take swift action.

[0086] Timely alarm communication can significantly shorten users' response time to abnormal situations. Upon receiving an alarm, users can immediately issue remote commands or arrange for on-site personnel to handle the issue, preventing problems from escalating due to information delays. For example, in a data center, abnormal server temperatures, if not addressed promptly, could lead to serious consequences such as data loss or system crashes. Remote information interaction modules ensure rapid response from relevant personnel, guaranteeing the stable operation of the data center.

[0087] In addition, the control module also transmits real-time hot-end temperature data to the user terminal via the remote information interaction module. This allows users not only to be aware of any abnormalities but also to know the specific temperature value of the hot end, providing a more comprehensive basis for judging the severity of the problem and formulating a handling plan. Detailed real-time hot-end temperature data helps users diagnose and analyze faults. Based on temperature change trends, historical data, and other information, combined with the equipment's operating principles and process requirements, users can make preliminary judgments about possible causes of faults, improving the efficiency and accuracy of fault handling.

[0088] Users can check the system's operating status and alarm information anytime, anywhere via mobile phones, tablets, and other user terminals, without having to be on-site at the equipment at all times. This facilitates effective system monitoring and management.

[0089] In some embodiments, the user terminal includes an operation and maintenance terminal and a management terminal; the control module has built-in information classification and transmission logic, which is configured to: transmit alarm trigger time and hot end temperature change curve to the operation and maintenance terminal, and transmit the total number of alarms within the period and the proportion of alarms of each level to the management terminal.

[0090] This embodiment distinguishes user terminals into operation and maintenance terminals and management terminals, and tailors differentiated data transmission content for each, thereby maximizing the efficiency and value of information transmission. By transmitting precise on-site diagnostic data (alarm trigger time, hot-end temperature change curve) to the operation and maintenance terminals, on-site maintenance personnel can quickly pinpoint the time of fault occurrence and intuitively analyze the dynamic temperature change process. This provides first-hand and detailed data support for fault root cause analysis and the formulation of precise maintenance strategies, greatly improving the efficiency of emergency response and fault handling. By transmitting highly condensed statistical data (total number of alarms within a period, percentage of alarms at each level) to the management terminals, management personnel can quickly grasp the overall operational health status of the equipment and the frequency and severity distribution of safety incidents from a macro perspective without having to focus on tedious on-site details. This provides a clear and intuitive data dashboard for operation and maintenance resource allocation, safety trend judgment, and macro-level decision-making.

[0091] Through the aforementioned information classification and transmission mechanism based on role requirements, the system can intelligently allocate limited communication bandwidth and energy resources, avoiding resource waste caused by sending all data to all terminals; at the same time, it also effectively prevents users of different roles from being disturbed by redundant information unrelated to their responsibilities, thus improving the overall efficiency of the high temperature alarm system.

[0092] Figure 2 This application provides an exemplary embodiment of a high-temperature alarm method based on thermoelectric potential, which includes the following steps:

[0093] S1: Utilizes the heat emitted by the monitored target to generate working electrical energy;

[0094] S2: Detects the temperature of the target and generates a temperature signal;

[0095] S3: After processing the temperature signal, determine whether the alarm conditions are met; if the alarm conditions are met, output an alarm signal.

[0096] S4: Execute the alarm action according to the alarm signal;

[0097] During the execution of steps S2 to S4, the working electrical energy generated in step S1 drives the process.

[0098] An exemplary embodiment of this application provides an electronic device, which may be a server. The electronic device includes a processor, a memory, and a communication interface connected via a system bus. The processor provides computing and control capabilities. The memory can be implemented using any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: disks, optical disks, EEPROMs, EPROMs, SRAMs, ROMs, magnetic storage, flash memory, and PROMs. The memory provides an environment for the operation of the operating system and computer programs stored within it. The communication interface is a network interface used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements the steps of the high-temperature alarm method based on thermoelectric potential drive described in the above embodiment.

[0099] An exemplary embodiment of this application provides a computer-readable storage medium storing a computer program / instructions thereon, which, when executed by a processor, implements the steps of the high-temperature alarm method based on thermoelectric potential driven described in the above embodiments. The computer-readable storage medium includes, but is not limited to, ROM and RAM. , disks, and floppy disks.

[0100] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0101] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A high-temperature alarm system based on thermoelectric potential, characterized in that, include: The thermoelectric power generation module includes a hot end, a cold end, and a thermoelectric material layer. The hot end is used to contact the monitoring target, the cold end is used to exchange heat with the environment, and the thermoelectric power generation module uses the temperature difference between the hot end and the cold end to generate working power. A temperature monitoring module, which is thermally coupled to the thermoelectric generator module, is used to detect the temperature of the hot end and generate a temperature signal. The control module is used to receive the temperature signal and output alarm information; The alarm module is used to receive the alarm information and perform alarm actions; The temperature monitoring module, control module, and alarm module are all powered by the operating power generated by the thermoelectric generator module.

2. The system according to claim 1, Its characteristics are: The temperature monitoring module includes a contact temperature sensing unit, and the detection end of the contact temperature sensing unit is fixedly connected to the hot end of the thermoelectric power generation module. The control module is communicatively connected to the contact temperature sensing unit. The control module is configured to adjust the temperature sampling frequency f of the contact temperature sensing unit according to a preset instruction. The adjustment range of the sampling frequency f satisfies 1Hz≤f≤10Hz.

3. The system according to claim 2, Its characteristics are: The temperature monitoring module also includes an environmental parameter sensing unit, which is used to collect ambient temperature data. With ambient humidity H; The control module has built-in temperature signal compensation logic. The temperature signal compensation logic corrects the initial temperature signal T0 generated by the temperature monitoring module using formula (1) to obtain the corrected temperature signal T: （1） Where k1 is the ambient temperature correction factor, 0.02≤k1≤0.05; k2 is the ambient humidity correction factor, 0.01≤k2≤0.

03.

4. The system according to claim 1, characterized in that... ； The control module has built-in multi-level temperature judgment thresholds, including early warning thresholds. Alarm threshold and emergency alarm threshold And satisfy =0.8 ~0.9 , =1.1 ~1.2 The control module is configured to: connect the temperature signal output by the temperature monitoring module with... , , Compare the data separately and output the corresponding alarm control commands.

5. The system according to claim 4, characterized in that; The control module also has a built-in temperature change rate calculation logic, which calculates the rate of change of the hot end temperature using formula (2). : （2） in, For the temperature signal sampled at the nth time, This is the temperature signal from the (n-1)th sample. The time interval between two samplings; when >3℃ / min and < When the control module triggers the warning threshold, The corresponding alarm control commands.

6. The system according to claim 1, characterized in that... ； The control module also includes a signal anti-interference processing unit, which uses an IIR low-pass filtering algorithm to filter the temperature signal output by the temperature monitoring module. The transfer function of the IIR low-pass filtering algorithm satisfies formula (3): （3） in, , , These are the filter numerator coefficients. , The coefficients in the denominator of the filter are 0 < 0. < < <1, 0< < <1.

7. The system according to claim 4, characterized in that; The alarm module includes a tiered audible and visual alarm unit, which is communicatively connected to the control module. The tiered audible and visual alarm unit is configured to: when receiving an alarm control command corresponding to a warning threshold, output a flashing light with a frequency of 1Hz to 2Hz and a prompting sound of 30dB to 50dB; when receiving an alarm control command corresponding to an emergency alarm threshold, output a flashing light with a frequency of 5Hz to 8Hz and a prompting sound of 70dB to 90dB.

8. The system according to claim 1, characterized in that... ； It also includes a remote information interaction module, which is electrically connected to the control module and powered by the thermoelectric generator module; the control module is configured to transmit alarm information and real-time temperature data of the hot end to the user terminal through the remote information interaction module while outputting alarm information.

9. The system according to claim 8, characterized in that... ； The user terminal includes an operation and maintenance terminal and a management terminal; the control module has built-in information classification and transmission logic, which is configured to: transmit alarm trigger time and hot end temperature change curve to the operation and maintenance terminal, and transmit the total number of alarms within the period and the proportion of alarms of each level to the management terminal.

10. A high-temperature alarm method based on thermoelectric potential, characterized in that, Includes the following steps: S1: Utilizes the heat emitted by the monitored target to generate working electrical energy; S2: Detects the temperature of the target and generates a temperature signal; S3: After processing the temperature signal, determine whether the alarm conditions are met; if the alarm conditions are met, output an alarm signal. S4: Execute the alarm action according to the alarm signal; During the execution of steps S2 to S4, the working electrical energy generated in step S1 drives the process.

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