Electricity-to-heat temperature detection and control system and device

Abstract

The utility model discloses an electricity-to-heat temperature detection and control system and device. The electricity-to-heat temperature detection and control system comprises a micro-control unit (1), a power input module (2), a thermistor alloy heating body (3), a heating body resistance detection module (4), a PID module (5) and an electric power adjustment module (6). The power supply input module (2) is connected to the micro-control unit (1) and an external power supply, and the power supply input module (2) is used for converting and transmitting the voltage of the external power supply into the voltage available for the micro-control unit (1); according to the system and the device, continuous and comprehensive temperature detection of the whole heating process can be realized; based on the real-time temperature information, the system can automatically adjust the heating power to ensure the temperature uniformity of the whole heating system, so that the heating system can stably operate under different working conditions and can basically and continuously maintain a preset temperature value.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit technical field especially relates to a temperature detection and control system and device of electric heat transfer. BACKGROUND

[0002] With the wide application of electric energy heat transfer technology, such as the popularization of electric heat tracing band, electric heater and other products in industrial, civil and other fields, the precision and reliability of temperature detection and control are increasingly required. Temperature detection and control is one of the key technologies to ensure the safe and efficient operation of these products.

[0003] However, the existing temperature detection scheme usually installs temperature sensors at one or several representative positions of the equipment, realizes temperature detection by collecting the temperature signal of the point, feeds back to the control system, and then realizes the adjustment of the heating power. It cannot fully reflect the temperature distribution of the whole heating system. In actual use, the local temperature may be too high or too low, which may lead to performance degradation or even damage of the product. Moreover, the control system is difficult to realize precise temperature regulation. For example, in a complex working environment, such as frequent temperature changes or uneven load, the existing temperature control scheme is difficult to meet the high precision requirement, the temperature change range is relatively large, and the temperature uniformity is poor.

[0004] Therefore, the utility model provides a temperature detection and control system and device of electric heat transfer, which can realize continuous and comprehensive temperature detection during the whole heating process. Based on real-time temperature information, the system can automatically adjust the heating power in real time to ensure the temperature uniformity of the whole heating system, so that it can stably operate under different working conditions and basically maintain around the predetermined temperature value. UTILITY MODEL CONTENTS

[0005] In order to overcome the defects of the prior art, the present application provides a temperature detection and control system and device of electric heat transfer, which can realize continuous and comprehensive temperature detection during the whole heating process. Based on real-time temperature information, the system can automatically adjust the heating power in real time to ensure the temperature uniformity of the whole heating system, so that it can stably operate under different working conditions and basically maintain around the predetermined temperature value.

[0006] The technical scheme adopted by the utility model to solve its technical problems is:

[0007] A temperature detection and control system of electric heat transfer comprises:

[0008] A micro control unit, a power input module, a thermistor alloy heating body, a heating body resistance value detection module, a PID module and a power adjustment module.

[0009] The power input module is connected to the micro control unit and an external power source, and is used to convert and deliver the external power source voltage into a voltage available for the micro control unit.

[0010] The heating body resistance value detection module is connected to the thermistor alloy heating body and the PID module, and is used to detect the real-time resistance value of the thermistor alloy heating body and output the real-time resistance value to the PID module.

[0011] The PID module is connected to the micro control unit, compares the preset resistance value with the real-time resistance value, and generates a comparison result, and according to the comparison result, calculates the corresponding power output power required to make the real-time resistance value reach the preset resistance value, and outputs a signal of the corresponding power output power to the micro control unit.

[0012] The power adjustment module is connected to the thermistor alloy heating body, the micro control unit and the external power source, and the micro control unit sends a control signal to the power adjustment module according to the signal of the corresponding power output power, and the power adjustment module adjusts the power output power of the external power source delivered to the thermistor alloy heating body according to the control signal, so that the power output power reaches the size of the corresponding power output power.

[0013] As an improvement of the present application, the temperature and humidity detection module is connected to the micro control unit, and is used to detect the temperature and humidity of the operating environment of the micro control unit.

[0014] As an improvement of the present application, the temperature and humidity detection module includes a temperature detection module and a humidity detection module, the temperature detection module is used to detect the temperature of the operating environment of the micro control unit, and the humidity detection module is used to detect the relative humidity of the operating environment of the micro control unit.

[0015] As an improvement of the present application, the heating body resistance value detection module includes a heating body current detection module and a heating body voltage detection module, the heating body current detection module is used to detect the real-time current signal flowing through the thermistor alloy heating body and send it to the micro control unit, and the heating body voltage detection module is used to detect the real-time voltage signal of the thermistor alloy heating body and send it to the micro control unit, and the micro control unit calculates the real-time resistance value according to the current signal and the current voltage signal, and sends the real-time resistance value to the PID module.

[0016] As an improvement of the present application, the electric heating temperature detection and control system further comprises a preset temperature resistance value module connected to the PID module, which is used to select the resistance value of the thermistor alloy heating body as a preset resistance value when the thermistor alloy heating body is located at a temperature value inputted by the outside.

[0017] As an improvement of the present application, the electric heating temperature detection and control system further comprises a serial port 1-RS485 circuit, and the heating body current detection module, the heating body voltage detection module and the PID module are connected to the micro control unit through the serial port 1-RS485 circuit.

[0018] As an improvement of the present application, the serial port 1-RS485 circuit comprises a T1 serial port 1-RS485 circuit and a T2 serial port 1-RS485 circuit, and the pins T1-RX, T1-RE and T1-TX of the T1 serial port 1-RS485 circuit are connected to the pins PC11, PD0 and PC10 of the micro control unit (1) in sequence, and the pins T2-RX, T2-RE and T2-TX of the T2 serial port 1-RS485 circuit are connected to the pins PD2, PD1 and PC12 of the micro control unit (1) in sequence.

[0019] As an improvement of the present application, the electric heating temperature detection and control system further comprises a network communication module and an I / O module, the network communication module is used to interact the data of the electric heating temperature detection and control system with the cloud, and the I / O module is used to connect external input devices and output display devices.

[0020] As an improvement of the present application, the electric heating temperature detection and control system further comprises a comprehensive fault indicator, which is used to reflect the real-time running condition of the electric heating temperature detection and control system.

[0021] An electric heating temperature detection and control device, comprising:

[0022] a device body and the electric heating temperature detection and control system according to any one of the above;

[0023] The electric heating temperature detection and control system is arranged on the device body.

[0024] The present application has the beneficial effect of providing an electric heating temperature detection and control system and device, which can realize continuous and comprehensive temperature detection during the whole heating process. Based on real-time temperature information, the system can automatically adjust the heating power in real time, ensure the temperature uniformity of the whole heating system, make it stable under different working conditions, and basically maintain at the predetermined temperature value. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, and the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0026] The present application will be further described below in combination with the drawings and embodiments.

[0027] Figure 1 is a system block diagram of one of the electric heating temperature detection and control systems of the present application;

[0028] Figure 2 is a system block diagram of another of the electric heating temperature detection and control systems of the present application;

[0029] Figure 3 is a circuit diagram of the micro control unit of the electric heating temperature detection and control system of the present application;

[0030] Figure 4 is a circuit diagram of the power input module of the electric heating temperature detection and control system of the present application;

[0031] Figure 5 is a circuit diagram of the heating body resistance value detection module interface circuit of the electric heating temperature detection and control system of the present application;

[0032] Figure 6 is a circuit diagram of the PID module interface circuit of the electric heating temperature detection and control system of the present application;

[0033] Figure 7 is a circuit diagram of the temperature and humidity detection module of the electric heating temperature detection and control system of the present application;

[0034] Figure 8 is a circuit diagram of the serial port 1-RS485 circuit of the electric heating temperature detection and control system of the present application;

[0035] Figure 9 is a schematic diagram of the heating body resistance value detection module of the electric heating temperature detection and control system of the present application;

[0036] Figure 10 is a schematic diagram of the temperature and humidity detection module of the electric heating temperature detection and control system of the present application.

[0037] The following is a detailed description of the reference signs:

[0038] 1, micro control unit; 2, power input module; 3, heat-sensitive resistance alloy heating body; 4, heating body resistance value detection module; 41, heating body current detection module; 42, heating body voltage detection module; 5, PID module; 6, power adjustment module; 7, temperature and humidity detection module; 71, temperature detection module; 72, humidity detection module; 8, preset temperature resistance value module; 9, network communication module; 10, I / O module. DETAILED DESCRIPTION

[0039] REFERENCE Figures 1 to 10 An electric heating temperature detection and control system, comprising:

[0040] A micro control unit 1, a power input module 2, a heat-sensitive resistance alloy heating body 3, a heating body resistance value detection module 4, a PID module 5 and a power adjustment module 6;

[0041] The power input module 2 is connected to the micro control unit 1 and an external power source, and is used to convert and deliver the voltage of the external power source into a voltage available for the micro control unit 1;

[0042] The heating body resistance value detection module 4 is connected to the heat-sensitive resistance alloy heating body 3 and the PID module 5 respectively, and is used to detect the real-time resistance value of the heat-sensitive resistance alloy heating body 3 and output the real-time resistance value to the PID module 5;

[0043] The PID module 5 is connected to the micro control unit 1, compares the preset resistance value with the real-time resistance value and generates a comparison result, and calculates the corresponding power output required for the real-time resistance value to reach the preset resistance value according to the comparison result, and outputs a signal of the corresponding power output to the micro control unit 1;

[0044] The power adjustment module 6 is connected to the heat-sensitive resistance alloy heating body 3, the micro control unit 1 and the external power source respectively, the micro control unit 1 sends a control signal to the power adjustment module 6 according to the signal of the corresponding power output, and the power adjustment module 6 adjusts the power output from the external power source to the heat-sensitive resistance alloy heating body 3 according to the control signal, so that the power output reaches the size of the corresponding power output.

[0045] Through the arrangement of the above structure, an electric heating temperature detection and control system is provided, which can realize continuous and comprehensive temperature detection during the whole heating process. Based on real-time temperature information, the system can automatically adjust the heating power to ensure the temperature uniformity of the whole heating system, so that it can stably operate under different working conditions and basically maintain at the predetermined temperature value. When the target temperature is determined in advance, the corresponding resistance value of the heating body 3 of the thermistor alloy is the preset resistance value, and the value is stored in the system. The power input module 2 converts the external power such as 220V alternating current into the required voltage of the micro control unit 1, such as 5V, 3.3V, to supply power for the micro control unit 1. The heating body resistance value detection module 4 collects the resistance value of the heating body in real time and transmits the data to the PID module 5. Since the resistance value of the thermistor has a monotonic function relationship with the temperature, such as the resistance value of the PTC thermistor increases with the increase of the temperature, the real-time resistance value can directly reflect the current temperature. The PID module 5 calculates the deviation between the preset resistance value and the real-time resistance value

[0046] e(t)=R 预设 -R 实时 ,

[0047] And the control amount is generated by the proportional P, integral I and differential D formula:

[0048]

[0049] The control amount corresponds to the target power output required for the real-time resistance value to approach the preset resistance value, such as the adjustment amount of voltage or current.

[0050] The PID module 5 outputs the calculation result to the micro control unit 1, and the micro control unit 1 generates a control instruction according to the signal. If the power adjustment module 6 is a silicon voltage regulator, the micro control unit 1 outputs an analog signal to control the output voltage of the power adjustment module 6. If the power adjustment module 6 is a solid state relay, the micro control unit 1 outputs a switching signal to control the on-off frequency of the power adjustment module 6 in unit time.

[0051] The power adjustment module 6, such as silicon voltage regulator and solid state relay, adjusts the electric power input to the heating body according to the instruction of the micro control unit 1:

[0052] If the real-time resistance value is less than the preset resistance value, the temperature is low, and the power output is increased to speed up the temperature rise.

[0053] If the real-time resistance value is greater than the preset resistance value, the temperature is high, and the power output is reduced to inhibit the temperature rise.

[0054] This process is repeated, forming a closed loop control, eventually the thermistor alloy heating body 3 resistance value, that is, the temperature is stable around the preset value, which can inhibit power fluctuations, environmental temperature changes and other disturbances through the PID algorithm dynamic compensation resistance value deviation, to achieve high-precision temperature control, and real-time resistance detection frequency is determined by the sampling rate of the micro control unit 1, the response speed is fast, so that the temperature can be kept around the preset temperature in a small interval.

[0055] Optionally, as shown in Figure 3 The micro control unit 1 is STM32F407VET6.

[0056] It should be understood that the preset resistance value can be stored in the storage structure inside the electric heating temperature detection and control system, or in the external storage structure, or in the cloud and in the PID module 5, as long as it can be transmitted to the PID module 5 when compared with the real-time resistance value.

[0057] It should be understood that the preset resistance value refers to the resistance value of the thermistor alloy heating body 3 when it is at the temperature value set by the user.

[0058] In this embodiment, the electric heating temperature detection and control system further comprises a temperature and humidity detection module 7, which is connected to the micro control unit 1, and the temperature and humidity detection module 7 is used to detect the temperature and humidity of the running environment of the micro control unit 1.

[0059] Through the above structure, the temperature and relative humidity of the micro control unit 1 running environment can be collected in real time, and feedback can be made in time when the micro control unit 1 environment temperature and relative humidity are abnormal, avoiding problems such as circuit short circuit, component corrosion, calculation error, program lag and even hardware damage caused by temperature and humidity, for example, when the temperature and humidity of the micro control unit 1 running environment are abnormal, the temperature and humidity detection module 7 can feedback the abnormality to the micro control unit 1, and the micro control unit 1 can feedback the abnormality to the outside world through the error reporting device, so as to minimize the risk and loss of abnormality; wherein the error reporting device can be an error reporting lamp, a display device or a signal transmission device.

[0060] Optionally, the temperature and humidity detection module 7 comprises a temperature detection module 71 and a humidity detection module 72, the temperature detection module 71 is used to detect the temperature of the micro control unit 1 running environment, and the humidity detection module 72 is used to detect the relative humidity of the micro control unit 1 running environment.

[0061] In the embodiment, the electric heat conversion temperature detection and control system further comprises a comprehensive fault indicator, which is used to reflect the real-time running state of the electric heat conversion temperature detection and control system.

[0062] Through the above structure, the comprehensive fault indicator can visually display whether the system has a temperature detection abnormality, a control module fault, a power abnormality or a component operation overrun and other comprehensive fault states in real time and intuitively through visual methods such as light color and flicker frequency, so as to facilitate the operation and maintenance personnel to quickly locate system hazards, take maintenance measures in time, effectively improve the safety, reliability and fault processing efficiency of the electric heat conversion system operation, and realize convenient monitoring and management of the system full working condition running state.

[0063] Optionally, when the temperature and humidity detection module 7 detects that the temperature and humidity of the operating environment of the micro control unit 1 are abnormal, the comprehensive fault indicator can be used for alarm.

[0064] In the embodiment, the heating body resistance value detection module 4 comprises a heating body current detection module 41 and a heating body voltage detection module 42, the heating body current detection module 41 is used to detect a real-time current signal flowing through the thermistor alloy heating body 3 and send it to the micro control unit 1, and the heating body voltage detection module 42 is used to detect a real-time voltage signal of the thermistor alloy heating body 3 and send it to the micro control unit 1, the micro control unit 1 calculates a real-time resistance value according to the current current signal and the current voltage signal, and sends the real-time resistance value to the PID module 5.

[0065] Through the above structure, the real-time voltage U and the current I flowing through the heating body are directly obtained by the independent heating body current detection module 41 and the heating body voltage detection module 42, so that the hysteresis and other errors of indirect measurement can be avoided.

[0066] In the embodiment, the electric heat conversion temperature detection and control system further comprises a preset temperature resistance value module 8, which is connected to the PID module 5, and is used to select the resistance value corresponding to the thermistor alloy heating body 3 as a preset resistance value according to the temperature value input by the outside when the thermistor alloy heating body 3 is located at the temperature value.

[0067] Through the setting of the preset temperature resistance value module 8, the system can flexibly select the preset resistance value according to different needs during operation, that is, different target temperatures can be conveniently switched. This flexibility enables the system to adapt to a variety of different working scenarios and process requirements, and if subsequent upgrading or optimization of the system is required, for example, improving the material or process of the heating body, resulting in changes in its temperature-resistance value characteristics, only the data in the preset temperature resistance value module 8 needs to be updated, without the need for large-scale changes to the entire control system, which has good scalability. At the same time, as the heating body is used, its performance may change, for example, factors such as aging may cause changes in its temperature-resistance value characteristics. The preset temperature resistance value module 8 can store multiple temperature-resistance value corresponding relationships, and the system can dynamically adjust the preset resistance value according to the actual situation, thereby compensating for changes in the performance of the heating body and ensuring that the system can stably achieve temperature control at different stages.

[0068] In the embodiment, the electric heating temperature detection and control system further comprises a serial port 1-RS485 circuit, and the heating body current detection module 41, the heating body voltage detection module 42 and the PID module 5 are connected to the micro control unit 1 through the serial port 1-RS485 circuit.

[0069] As shown in Figure 8 The serial port 1-RS485 circuit realizes multi-module cooperation through a unified RS485 bus protocol, supports long-distance and anti-interference data interaction, provides a reliable communication foundation for real-time monitoring, accurate control and fault protection of the electric heat tracing system, and through the connection of the serial port 1-RS485 circuit, the maintenance process is simplified in a modular manner, and the replacement steps when the device is damaged are facilitated.

[0070] In the embodiment, the serial port 1-RS485 circuit comprises a T1 serial port 1-RS485 circuit and a T2 serial port 1-RS485 circuit, the pins T1-RX, T1-RE and T1-TX of the T1 serial port 1-RS485 circuit are connected to the pins PC11, PD0 and PC10 of the micro control unit 1 in sequence, and the pins T2-RX, T2-RE and T2-TX of the T2 serial port 1-RS485 circuit are connected to the pins PD2, PD1 and PC12 of the micro control unit 1 in sequence.

[0071] By precisely connecting the pins of the T1 / T2 circuit of the serial port 1-RS485 circuit with the PC10-PC12, PD0-PD2 of the micro control unit 1, independent control and parallel communication of the double RS485 channel are realized, and an efficient and reliable data interaction channel is provided for peripherals such as the current voltage module, the PID module 5. This design makes full use of the multi-USART resources and GPIO multiplexing function of the micro control unit 1, supports modular expansion, and enhances the anti-interference ability and fault tolerance of the system in the industrial environment. For example, the T1 channel is connected with the PID module 5 to realize real-time transmission of control instructions and feedback data, and the T2 channel is connected with the heating body current detection module 41 and the heating body voltage detection module 42 to realize periodic acquisition of the working current / voltage of the heating body.

[0072] In this embodiment, the electric heating temperature detection and control system further comprises a network communication module 9 and an I / O module 10. The network communication module 9 is used to interact data of the electric heating temperature detection and control system with the cloud, and the I / O module 10 is used to connect external input devices and output display devices.

[0073] Through the above structure, the network communication module 9 enables the system to interact data with the cloud. A large amount of data generated during system operation, such as real-time current, voltage, temperature, and resistance value of the heating body, can be uploaded to the cloud server for storage. The cloud has strong storage capacity, which can avoid the problem of limited local storage capacity. Moreover, with the help of data analysis tools and algorithms of the cloud, these data can be deeply mined and analyzed, such as analyzing the operation law of the equipment, predicting equipment failure, and evaluating system energy efficiency, which provides a strong basis for optimization and improvement of the system. The I / O module 10 is connected with external input devices such as keyboard and touch screen, and users can conveniently set parameters and select modes of the system through these devices. At the same time, output display devices such as display screen and indicator light can intuitively display the running state, temperature setting value, and real-time measurement value of the system to the user, so that the user can clearly understand the working condition of the system. This diversified operation and display mode improves the interaction experience between the user and the system and reduces the operation difficulty.

[0074] In this embodiment, the electric heating temperature detection and control system further comprises an external FLASH module, which is used to provide additional storage space for the electric heating temperature detection and control system.

[0075] Through the above structure, the external FLASH module realizes functions such as parameter storage and log recording, ensuring that the device can still retain key configurations after power failure. The design needs to consider communication speed, data security, and erase life, which improves the intelligent and configurable degree of the system.

[0076] The electric heating temperature detection and control device of the embodiment comprises a device body and an electric heating temperature detection and control system as described in the above embodiment; wherein the electric heating temperature detection and control system is arranged on the device body.

[0077] Through the arrangement of the above structure, an electric heating temperature detection and control system is provided, which can realize continuous and comprehensive temperature detection throughout the whole heating process. Based on real-time temperature information, the system can automatically adjust the heating power to ensure the temperature uniformity of the whole heating system and make it operate stably under different working conditions. The system pre-determines the resistance value corresponding to the target temperature of the heat-generating body 3 of the thermistor alloy, stores the value in the system, converts the external power such as 220V AC power into the required voltage such as 5V or 3.3V for the micro control unit 1 by the power input module 2 to supply power to the micro control unit 1, and collects the resistance value of the heat-generating body in real time by the heat-generating body resistance value detection module 4 and transmits the data to the PID module 5. Since the resistance value of the thermistor has a monotonic function relationship with the temperature, for example, the resistance value of the PTC thermistor increases with the temperature, the real-time resistance value can directly reflect the current temperature, and the PID module 5 calculates the deviation between the preset resistance value and the real-time resistance value

[0078] e(t)=R 预设 -R 实时 ,

[0079] and generates a control amount through the proportional P, integral I and differential D formula:

[0080]

[0081] The control amount corresponds to the target power output such as the adjustment amount of voltage or current required to make the real-time resistance value approach the preset resistance value.

[0082] The PID module 5 outputs the calculation result to the micro control unit 1, and the micro control unit 1 generates a control instruction according to the signal. If the power adjustment module 6 is a silicon-controlled voltage regulator, the micro control unit 1 outputs an analog signal to control the output voltage of the power adjustment module 6. If the power adjustment module 6 is a solid-state relay, the micro control unit 1 outputs a switching signal to control the on-off frequency of the power adjustment module 6 in a unit time.

[0083] The power adjustment module 6 such as a silicon-controlled voltage regulator or a solid-state relay adjusts the electric power input to the heat-generating body according to the instruction of the micro control unit 1:

[0084] If the real-time resistance value is less than the preset resistance value, the temperature is low, and the power output is increased to speed up the temperature rise.

[0085] If the real-time resistance value is greater than the preset resistance value, the temperature is high, and the power output is reduced to suppress the temperature rise.

[0086] This process is repeated, forming a closed loop control, eventually the thermistor alloy heating body 3 resistance, that is, the temperature is stable around the preset value, which is dynamically compensated by the PID algorithm resistance deviation, can inhibit power fluctuations, environmental temperature changes and other interference, to achieve high-precision temperature control, and real-time resistance detection frequency is high by the micro control unit 1 sampling rate determines, fast response speed, so that the temperature can be kept at around the preset temperature in a small interval.

[0087] Optionally, as shown in Figure 3 The micro control unit 1 model is STM32F407VET6.

[0088] It should be understood that the preset resistance can be stored in the storage structure inside the application electrically heated temperature detection and control system, can also be stored in the external storage structure, can also be cloud delivery and stored in the PID module 5, as long as it can be delivered to the PID module 5 when compared with the real-time resistance.

[0089] It should be understood that the preset resistance refers to the resistance of the thermistor alloy heating body 3 when it is at the temperature set by the user.

[0090] As described above is one or more embodiments provided in conjunction with the specific content, and does not recognize the specific implementation of the utility model is limited to these descriptions. Any approximation, similar, or based on the concept of the utility model under the premise of making a number of technical inferences or replacement of the method and structure of the utility model, should be considered as the protection scope of the utility model.

Claims

1. An electrical-to-thermal temperature sensing and control system, characterized by, The application relates to an electric heating temperature detection and control system, which comprises a micro control unit (1), a power input module (2), a heat-sensitive resistance alloy heating body (3), a heating body resistance value detection module (4), a PID module (5) and a power adjustment module (6). The power input module (2) is connected to the micro control unit (1) and an external power source, and is used for converting and transmitting the voltage of the external power source into a voltage available for the micro control unit (1). The heating body resistance value detection module (4) is connected to the heat-sensitive resistance alloy heating body (3) and the PID module (5) respectively, and is used for detecting the real-time resistance value of the heat-sensitive resistance alloy heating body (3) and outputting the real-time resistance value to the PID module (5). The PID module (5) is connected to the micro control unit (1), compares the preset resistance value with the real-time resistance value and generates a comparison result, calculates the corresponding power output power required for the real-time resistance value to reach the preset resistance value according to the comparison result, and outputs the signal of the corresponding power output power to the micro control unit (1). The power adjustment module (6) is connected to the heat-sensitive resistance alloy heating body (3), the micro control unit (1) and the external power source respectively, the micro control unit (1) sends a control signal to the power adjustment module (6) according to the signal of the corresponding power output power, and the power adjustment module (6) adjusts the power output power of the external power source transmitted to the heat-sensitive resistance alloy heating body (3) according to the control signal, so that the power output power reaches the size of the corresponding power output power. The electric heating temperature detection and control system further comprises a temperature and humidity detection module (7) connected to the micro control unit (1), which is used for detecting the temperature and humidity of the running environment of the micro control unit (1).

2. The electrical heat transfer temperature sensing and control system of claim 1, wherein, The temperature and humidity detection module (7) comprises a temperature detection module (71) and a humidity detection module (72), the temperature detection module (71) is used for detecting the temperature of the running environment of the micro control unit (1), and the humidity detection module (72) is used for detecting the relative humidity of the running environment of the micro control unit (1).

3. The electrical heat transfer temperature sensing and control system of claim 2, wherein, The heating body resistance value detection module (4) comprises a heating body current detection module (41) and a heating body voltage detection module (42), the heating body current detection module (41) is used for detecting the real-time current signal flowing through the heat-sensitive resistance alloy heating body (3) and sending the real-time current signal to the micro control unit (1), and the heating body voltage detection module (42) is used for detecting the real-time voltage signal of the heat-sensitive resistance alloy heating body (3) and sending the real-time voltage signal to the micro control unit (1), the micro control unit (1) calculates the real-time resistance value according to the current signal and the voltage signal, and sends the real-time resistance value to the PID module (5).

4. The electrical heat transfer temperature sensing and control system of claim 1, wherein, ​ 5. The electrical heat transfer temperature sensing and control system of claim 1, wherein, The electric heat temperature detection and control system further comprises a preset temperature resistance value module (8) connected to the PID module (5), which is used to select the resistance value of the heat-sensitive resistance alloy heating body (3) as a preset resistance value when the heat-sensitive resistance alloy heating body (3) is located at a temperature value input by the outside world.

6. The electrical heat transfer temperature sensing and control system of claim 4, wherein, The electric heat temperature detection and control system further comprises a serial port 1-RS485 circuit, and the heating body current detection module (41), the heating body voltage detection module (42) and the PID module (5) are connected to the micro control unit (1) through the serial port 1-RS485 circuit.

7. The electrical heat transfer temperature sensing and control system of claim 6, wherein, The serial port 1-RS485 circuit comprises a T1 serial port 1-RS485 circuit and a T2 serial port 1-RS485 circuit, and the pins T1-RX, T1-RE and T1-TX of the T1 serial port 1-RS485 circuit are connected to the pins PC11, PD0 and PC10 of the micro control unit (1) in sequence, and the pins T2-RX, T2-RE and T2-TX of the T2 serial port 1-RS485 circuit are connected to the pins PD2, PD1 and PC12 of the micro control unit (1) in sequence.

8. The electrical heat transfer temperature sensing and control system of claim 1, wherein, The electric heat temperature detection and control system further comprises a network communication module (9) and an I / O module (10), the network communication module (9) is used to interact the data of the electric heat temperature detection and control system with the cloud, and the I / O module (10) is used to connect external input devices and output display devices.

9. The electrical heat transfer temperature sensing and control system of claim 1, wherein, The electric heat temperature detection and control system further comprises a comprehensive fault indicator light for reflecting the real-time running condition of the electric heat temperature detection and control system.

10. An electrically transduced heat temperature sensing and control device, characterized by, The electric heat temperature detection and control system comprises: a device body and the electric heat temperature detection and control system according to any one of claims 1-7; the electric heat temperature detection and control system is arranged on the device body.

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