Safe fire temperature controller

Abstract

The utility model discloses a safe fire-using temperature controller, which comprises a temperature controller shell, a main controller, a temperature measuring module, an over-temperature early warning module, an alarm module and a power supply module, a screen display module is embedded on the surface of the temperature controller shell, and a mounting bracket is assembled on the temperature controller shell; according to the utility model, the arrangement position and angle of the temperature controller shell can be flexibly adjusted through the mounting bracket, so that the temperature controller shell can be closer to a heated object at a fire source, and the heating temperature of the object can be more accurately detected; through cooperation of the main controller, the temperature measurement module, the over-temperature early warning module and the alarm module, abnormal fire alarm is realized, and the temperature measurement mode can be adjusted through the over-temperature early warning module, so that the obtained detection value is more timely and accurate; and the alarm module can realize on-site and remote dual alarms, so that the stability of safe fire monitoring is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of open flame safety monitoring technology, such as gas stoves and heating tests, and in particular to a safe fire temperature controller. Background Technology

[0002] When using open flames, such as cooking food on a gas stove or heating in a laboratory, the time spent using the fire may be long, and personnel may temporarily leave the fire source to handle other matters or emergencies. In such cases, it is easy to become negligent in using fire due to forgetfulness or large errors in time estimation, causing the water in the pot or the test reagents used in the experiment to boil dry. Although some users have fire safety alarm devices installed in their kitchens or laboratories, their installation locations are fixed, generally far from the fire source, and they generally rely on the smoke produced by the open flame to trigger the alarm. Therefore, the alarm has a serious lag and cannot improve the safety of using fire. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a safe fire temperature controller that is easy to install and adjust, provides timely alarms, and helps to improve reliability.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a safe fire temperature controller, including a temperature controller housing, a screen display module embedded in the surface of the temperature controller housing, and further including...

[0005] The main controller is encapsulated inside the temperature controller housing and connected to the screen display module;

[0006] The temperature measurement module includes a thermistor for detecting temperature information, and a signal amplification circuit, a signal filtering circuit, a signal linearization circuit and an analog-to-digital converter are connected in sequence to the thermistor.

[0007] The over-temperature warning module includes a microprocessor, which is connected to the main controller and the analog-to-digital converter respectively. It is used to receive digital signals and process them to obtain real-time temperature values. The microprocessor has pre-stored monitoring thresholds and risk value parameters. The microprocessor compares the monitoring thresholds with the real-time temperature values ​​to determine whether the use of fire is in a risky or dangerous state.

[0008] An alarm module is connected to the main controller and, under the control of the main controller, triggers an alarm when a fire is in a dangerous state.

[0009] The power supply module is used to provide operating voltage for the main controller, the screen display module, the temperature measurement module, the over-temperature warning module, and the alarm module;

[0010] The mounting bracket is assembled with the housing of the temperature controller to support and adjust the measurement and control position and orientation of the housing of the temperature controller.

[0011] As a preferred technical solution, when the difference between the monitoring threshold and the real-time temperature value is less than the risk value parameter, it is determined that the use of fire is in a risky state, and the microprocessor increases the frequency of receiving the detection signal from the temperature measurement module.

[0012] When the difference between the monitoring threshold and the real-time temperature value is less than or equal to zero, the use of fire is determined to be in a dangerous state.

[0013] As a preferred technical solution, the over-temperature warning module further includes a signal filtering module. The signal filtering module is connected to the microprocessor via a filtering mode button. When the signal filtering module is connected to the microprocessor, it filters out fluctuation values ​​in the real-time temperature value. The filtering mode button is embedded in the surface of the temperature controller housing.

[0014] As a preferred technical solution, the over-temperature warning module further includes a distance monitoring module and a distance prompting module. The distance monitoring module is connected to the microprocessor and, with the cooperation of the main controller, provides distance information reminders through the distance prompting module.

[0015] As a preferred technical solution, the alarm module includes an acoustic alarm and an optical alarm, and both the acoustic alarm and the optical alarm are embedded in the surface of the temperature controller housing.

[0016] As a preferred technical solution, the alarm module is also connected to a smart terminal via a wireless signal, enabling remote alarm functionality through the smart terminal.

[0017] As a preferred technical solution, the thermistor includes a thermocouple, a thermistor, or an infrared sensor.

[0018] As an improvement to the above technical solution, the mounting bracket includes a mounting base, on which a universal bamboo tube is connected, and at the end of the universal bamboo tube is a snap-fit ​​seat, and the housing of the temperature controller is detachably disposed within the snap-fit ​​seat.

[0019] Due to the adoption of the above technical solution, this utility model has the following beneficial effects: the setting position and angle of the temperature controller housing can be flexibly adjusted by the mounting bracket, so that it can be closer to the heated object at the fire source, thereby enabling more accurate detection of the object's heating temperature; through the cooperation of the main controller with the temperature measurement module, over-temperature warning module, and alarm module, abnormal fire alarms can be realized, and the over-temperature warning module can also adjust the temperature measurement mode, making the obtained detection values ​​more timely and accurate; the alarm module can realize dual alarms on-site and remotely, which greatly improves the stability of safe fire monitoring. Attached Figure Description

[0020] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0021] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0022] Figure 2 This is a structural block diagram of an embodiment of the present utility model;

[0023] In the diagram: 1-Temperature controller housing; 2-Screen display module; 3-Thermistor element; 4-Laser rangefinder sensor; 5-Distance indication module; 6-Filter mode button; 7-Acoustic alarm; 8-Optical alarm; 9-Mounting base; 10-Universal bamboo tube; 11-Snap-fit ​​base. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0025] like Figure 1 and Figure 2As shown, the safe fire temperature controller can be used for fire detection and monitoring of gas stoves in homes, as well as for fire detection and monitoring of heating experiments in laboratories. Specifically, it includes a temperature controller housing 1, with a screen display module 2 embedded in the surface of the housing 1, and a main controller encapsulated within the housing 1 and connected to the screen display module 2. Under the drive and control of the main controller, the screen display module 2 can display the detected temperature information. The screen display module 2 includes an external frame, a display screen, a scanning control board, a transmission cable, a display card, and a multimedia card. The external frame is the basic structure of the screen display module 2, used to fix internal hardware such as unit boards, circuit boards, and power supply components. The display screen consists of LEDs and driving circuits. The scanning control board is responsible for data buffering, generating scanning signals, and duty cycle / grayscale control signals, ensuring smooth data transmission between components. The transmission cable transmits data and signals from the main controller to each point on the display screen, completing the transmission of display information. In addition to basic graphics card functions, the display card and multimedia card can output digital signals and blanking signals. The multimedia card can convert input signals into digital signals for video capture. The main controller generates various control signals and processes digital video signals to ensure the normal operation of the display screen. The specific structure and working principle of each part are well known to those skilled in the art and will not be described in detail here.

[0026] This embodiment also includes a temperature measurement module, mainly used for temperature information acquisition and preliminary processing. The temperature measurement module includes a thermistor 3 for detecting temperature information. The thermistor 3 can be configured as a thermocouple, thermistor, or infrared sensor to sense temperature information. A signal amplification circuit, a signal filtering circuit, a signal linearization circuit, and an analog-to-digital converter (ADC) are sequentially connected to the thermistor 3. The signal amplification circuit, the signal filtering circuit, and the signal linearization circuit work together to amplify, filter, and linearize the signal detected by the thermistor 3. The ADC converts the pre-processed signal into a digital signal for subsequent processing.

[0027] The fire safety temperature controller also includes an over-temperature warning module. This module contains a microprocessor (MCU), which is connected to both the main controller and the analog-to-digital converter (ADC). The MCU performs calculations and processes the digital signal obtained through the ADC to obtain the real-time temperature value T of the object being measured. This real-time temperature value T is then displayed on the screen display module 2 via the connection between the MCU and the main controller. In actual use, the MCU receives data from the ADC in a timed manner, meaning there is a certain time interval between receiving adjacent data.

[0028] The microprocessor (MCU) pre-stores a monitoring threshold 't' and a risk value parameter. The risk value parameter is the difference between the monitoring threshold 't' and the real-time temperature value 'T', for example, it can be set to 5°C. The value of the risk value parameter can be adjusted according to the user's desired level of safety. During monitoring and control, the MCU compares the monitoring threshold 't' and the real-time temperature value 'T' in real time, performing a subtraction calculation. When the difference is less than the risk value parameter, it indicates that the real-time temperature value 'T' is close to the monitoring threshold 't', and the fire is deemed to be in a risky state. The MCU then increases the frequency of receiving signals from the temperature measurement module, shortening the time interval between receiving adjacent data. This increased detection frequency allows for more precise monitoring and control of the risk state. When the difference between the monitoring threshold and the real-time temperature value is less than or equal to zero, the fire is deemed to be in a dangerous state. The MCU and the main controller then work together to drive corresponding functions, enabling the temperature controller to issue an internal warning when the temperature exceeds the limit.

[0029] During cooking or experiments, when water or reagents boil dry, the temperature near the heat source will rise significantly. The monitoring threshold t can be obtained through a corresponding temperature rise test and can be considered a safety threshold. When the real-time temperature value T exceeds this safety threshold, it indicates a fire safety issue, and an alarm can be triggered by the microprocessor (MCU) and the main controller to alert the user. In most cases, however, the use of fire is within a safe range. Therefore, the data receiving frequency of the microprocessor (MCU) is adjustable. In a safe state, the microprocessor (MCU) receives data at a lower, conventional monitoring frequency to reduce energy consumption and extend the battery life of the temperature controller.

[0030] The over-temperature warning module also includes a distance monitoring module and a distance indication module 5. The distance monitoring module is connected to the microprocessor (MCU) and, with the cooperation of the main controller, provides distance information reminders through the distance indication module 5. The distance monitoring module is used to detect the specific distance between the object being measured and the temperature controller; for example, it can be set to a laser rangefinder 4. The distance indication module 5 is a color-changing indicator light, such as a red-green indicator light. If the monitoring distance of the temperature controller is large, it will indicate this through the distance indication module 5 with a red light; if the distance is appropriate, it will indicate this through the distance indication module 5 with a green light, so that the user can intuitively obtain relevant information, adjust the monitoring position in a timely manner, and ensure the monitoring and control effect.

[0031] The over-temperature warning module also includes a signal filtering module, which is connected to the microprocessor (MCU) via a filtering mode button 6. When the signal filtering module is connected to the MCU, it filters out fluctuations in the real-time temperature value T. The filtering mode button 6 is embedded in the surface of the temperature controller housing 1. The MCU can prioritize the signal filtering module; that is, when the filtering mode button 6 is activated, the MCU no longer communicates directly with the main controller but communicates with the main controller through the signal filtering module. The main controller records the detected real-time values ​​and displays them through the screen display module 2, which can be used as a temperature detection tool, especially in laboratory settings. During measurement and control, fluctuations in the flame can cause large fluctuations in the detected values, easily exceeding the detection range and generating false alarms. The signal filtering module was designed based on this limitation.

[0032] When the filtering mode button 6 is pressed, the microprocessor (MCU) averages the real-time temperature values ​​T received during the pressing period after removing large fluctuations, thereby improving measurement accuracy and avoiding interference from repeated measurements. The specific process for determining the fluctuation values ​​is as follows:

[0033] The microprocessor (MCU) records the received real-time temperature values ​​T, denoted as T1, T2, T3, T4...T n ;

[0034] Select a consecutive set of values ​​(e.g., 5): T1, T2, T3, T4, and T5;

[0035] Calculate the average of the above set of values, denoted as T. 1-5 Analyze the above five values ​​and their relationship with T. 1-5 The numerical difference, if there is a large difference (positive or negative, which can be set), is the fluctuating temperature value T. X Then remove the fluctuating temperature value T. XThen recalculate the average T of the remaining four values. 1-5’ ;

[0036] If more than half of the values ​​in a set of values ​​are defined as fluctuating temperature values ​​T X If the value is not found, the entire value group is discarded and the next value group is recalculated.

[0037] The calculated T 1-5 or T 1-5 ， T 6-10 or T 6-10 ， T 11-15 ， Alternatively, the data can be recorded and displayed as a criterion for determining whether the data is close to the monitoring threshold t, thereby improving the accuracy of the judgment and enhancing the stability of the measurement and control.

[0038] This embodiment also includes an alarm module connected to the main controller. When a fire hazard occurs, the alarm is triggered under the control of the main controller. Specifically, the alarm module includes an acoustic alarm 7 and an optical alarm 8, both embedded in the surface of the temperature controller housing 1. The acoustic alarm 7 serves as an alarm light, and the optical alarm 8 serves as a buzzer. The alarm module is also wirelessly connected to a smart terminal for remote alarm functionality. The smart terminal can be a smartphone with a corresponding app installed to work with the alarm light and buzzer to create multi-mode alarms, improving alarm reliability.

[0039] The power module provides operating voltage to the main controller, the screen display module 2, the temperature measurement module, the over-temperature warning module, and the alarm module. The power module includes a battery, communication interfaces such as USB and Type-C, and a power input filter, a power rectifier circuit, a power filter circuit, a power voltage regulator circuit, and a power output filter. The power input filter primarily filters out noise and interference from the input power supply, ensuring its stability and reliability. The power rectifier circuit converts the AC voltage from the input power supply into DC voltage. The power filter circuit filters the rectified DC voltage to make it more stable. The power voltage regulator circuit regulates the filtered DC voltage to adjust it to the required stable value. The power output filter filters the output voltage to make it more stable and reliable. The power module is well-known to those skilled in the art and will not be described in detail here.

[0040] A mounting bracket is fitted to the temperature controller housing 1 to support and adjust its measurement and control position and orientation. Specifically, the mounting bracket includes a mounting base 9, on which a universal joint tube 10 is connected. A snap-fit ​​seat 11 is rotatably connected to the end of the universal joint tube 10, and the temperature controller housing 1 is detachably housed within the snap-fit ​​seat 11. The mounting base 9 can be configured as a suction cup for easy assembly and disassembly. The universal joint tube 10 has good deformation characteristics, allowing for more flexible adjustment of the position and orientation of the temperature controller housing 1.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A safe fire temperature controller, comprising a temperature controller housing, wherein a screen display module is embedded in the surface of the temperature controller housing, characterized in that: It also includes, The main controller is encapsulated inside the temperature controller housing and connected to the screen display module; The temperature measurement module includes a thermistor for detecting temperature information, and a signal amplification circuit, a signal filtering circuit, a signal linearization circuit and an analog-to-digital converter are connected in sequence to the thermistor. The over-temperature warning module includes a microprocessor, which is connected to the main controller and the analog-to-digital converter respectively. It is used to receive digital signals and process them to obtain real-time temperature values. The microprocessor has pre-stored monitoring thresholds and risk value parameters. The microprocessor compares the monitoring thresholds with the real-time temperature values ​​to determine whether the use of fire is in a risky or dangerous state. An alarm module is connected to the main controller and, under the control of the main controller, triggers an alarm when a fire is in a dangerous state. The power supply module is used to provide operating voltage for the main controller, the screen display module, the temperature measurement module, the over-temperature warning module, and the alarm module; The mounting bracket is assembled with the housing of the temperature controller to support and adjust the measurement and control position and orientation of the housing of the temperature controller.

2. The safe fire temperature controller as described in claim 1, characterized in that: The over-temperature warning module also includes a signal filtering module. The signal filtering module is connected to the microprocessor via a filtering mode button. When the signal filtering module is connected to the microprocessor, it filters out fluctuation values ​​in the real-time temperature value. The filtering mode button is embedded in the surface of the temperature controller housing.

3. The safe fire temperature controller as described in claim 1, characterized in that: The over-temperature warning module also includes a distance monitoring module and a distance prompting module. The distance monitoring module is connected to the microprocessor and, with the cooperation of the main controller, provides distance information reminders through the distance prompting module.

4. The safe fire temperature controller as described in claim 1, characterized in that: The alarm module includes an acoustic alarm and an optical alarm, and both the acoustic alarm and the optical alarm are embedded in the surface of the temperature controller housing.

5. The safe fire temperature controller as described in claim 4, characterized in that: The alarm module is also connected to a smart terminal via a wireless signal, enabling remote alarm functionality through the smart terminal.

6. The safe fire temperature controller as described in claim 1, characterized in that: The thermal element includes a thermocouple, a thermistor, or an infrared sensor.

7. The safe fire temperature controller as described in claim 1, characterized in that: The mounting bracket includes a mounting base, on which a universal bamboo tube is connected. The end of the universal bamboo tube is rotatably connected to a snap-fit ​​seat, and the temperature controller housing is detachably housed within the snap-fit ​​seat.

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