Intelligent monitoring system and method for diesel engine and crankshaft bearing temperature

Abstract

The present invention provides an intelligent monitoring system and method for the temperature of a diesel engine and its crankshaft bearing, wherein: a sensor is adaptively connected to a temperature measuring square tube; and the temperature measuring square tube is mounted on a square tube mounting bracket. The short end face of the L-shaped bracket is connected to the side face of the oil pan, and the long end face of the L-shaped bracket supports the temperature measuring square tube so that the temperature measuring square tube is in a vertical state; a convex clamp mounts and fixes the temperature measuring square tube on the long end face of the L-shaped bracket. The sensor acquires the temperature signal of the diesel engine crankshaft bearing in real time, and transmits the temperature signal through the temperature measuring square tube using an adaptive connection structure. The present invention achieves accurate measurement of the diesel engine crankshaft bearing temperature, protects moving parts such as the diesel engine crankshaft, and improves the safety of the diesel engine. At the same time, the fixing method of the temperature measuring square tube improves the reliability of the system installation and the adaptability in high-vibration environments, and is suitable for wide application.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel engines, and in particular to an intelligent monitoring system and method for the temperature of a diesel engine and a crankshaft bearing thereof. Background Art

[0002] High-power, four-stroke, medium-speed diesel engines offer a simple structure, easy maintenance, high horsepower, compact size, light weight, and advanced performance indicators, making them leaders among similar diesel engines. As compression-ignition internal combustion engines, diesel engines operate through four strokes: intake, compression, combustion and expansion (i.e., power generation), and exhaust. These four processes constitute a working cycle. Of the four strokes in a four-stroke diesel engine, only the third stroke, the power stroke, generates power and generates power, allowing the crankshaft to operate continuously and evenly throughout the four strokes.

[0003] The diesel engine crankshaft is installed and fixed with bearings, and there are bearing shells between the crankshaft and the bearings. The crankshaft and the bearing shells are lubricated and cooled by the oil film generated by pressurized oil. Once the oil film between the crankshaft and the bearing shells is broken, it will cause serious wear of the crankshaft and the bearing shells or even scrap. Therefore, it is very important for the diesel engine to obtain the operating temperature and working status of the crankshaft, bearing shells and bearings.

[0004] Existing technology typically only measures the temperature of the lubricating oil entering the engine, without a temperature measurement device for the crankshaft bearings, lacking a means to measure bearing temperature. Furthermore, due to the high speeds and significant vibrations experienced by four-stroke medium-speed diesel engines, improperly securing the temperature measurement square tube could easily damage the tube connector, severely impacting bearing temperature measurement and preventing safe, reliable, and stable engine operation. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides a diesel engine and a crankshaft bearing temperature intelligent monitoring system and monitoring method thereof.

[0006] According to one aspect of the present invention, a diesel engine crankshaft bearing temperature intelligent monitoring system is provided, comprising: a sensor and a temperature measuring square tube; wherein:

[0007] The sensor is adaptively connected to the temperature measuring square tube;

[0008] In the working state, the sensor obtains the temperature signal of the diesel engine crankshaft bearing in real time, and uses the adaptive connection structure to transmit the temperature signal through the temperature measuring square tube for shutting down the diesel engine for protection; the sensor displays the temperature signal in real time and outputs an alarm signal according to a preset threshold.

[0009] Optionally, the sensor further includes any one or more of the following:

[0010] - the number of the sensor is one or more;

[0011] -The sensor adopts thermal resistance PT100 temperature sensor;

[0012] -The sensor is provided with a cable and a plug for connecting to the temperature measuring square tube;

[0013] -The sensor is provided with a mounting thread interface.

[0014] Optionally, there are one or more temperature measuring square tubes, each of which includes a shell, an integrated cable core arranged inside the shell, and a connecting cable arranged on one side of the shell. The shell is provided with one or more sockets for adapting and connecting to the sensor. The integrated cable core is used to transmit the temperature signal. The multiple temperature measuring square tubes are connected to each other by using the connecting cable to realize the integrated installation of multiple temperature measuring square tubes.

[0015] Optionally, the shell is made of aluminum alloy.

[0016] Optionally, the monitoring system further includes: a square tube installation assembly, and the temperature measuring square tube is installed on the square tube installation assembly.

[0017] Optionally, the square tube mounting assembly comprises: an L-shaped bracket and a convex clamp; wherein:

[0018] The long end surface of the L-shaped bracket is used to place the temperature measuring square tube;

[0019] The convex clamp is used to clamp and fix the temperature measuring square tube on the L-shaped bracket.

[0020] Optionally, the L-shaped bracket is made of sheet metal.

[0021] Optionally, the convex clamp is made of sheet metal; the height of the convex clamp is slightly lower than the height of the temperature measuring square tube, and through the height difference, when the convex clamp is tightened, the temperature measuring square tube is clamped and fixed on the L-shaped bracket.

[0022] According to another aspect of the present invention, a diesel engine is provided, comprising a diesel engine body and the above-mentioned diesel engine crankshaft bearing temperature intelligent monitoring system; wherein:

[0023] The sensor is installed on the crankshaft bearing cover of the diesel engine body and is used to obtain the temperature signal of the crankshaft bearing in real time;

[0024] The temperature measuring square tube is installed on the side of the oil pan of the diesel engine body through the square tube installation assembly, and is used to transmit the temperature signal in real time.

[0025] Optionally, the short end face of the L-shaped bracket is connected to the side face of the oil pan, and the long end face of the L-shaped bracket supports the temperature measuring square tube so that the temperature measuring square tube is in a vertical state; the convex clamp installs and fixes the temperature measuring square tube on the long end face of the L-shaped bracket.

[0026] Optionally, the sensor acquires the temperature signal of the diesel engine crankshaft bearing in real time, and uses an adaptive connection structure to transmit the temperature signal to the diesel engine control system through the temperature measuring square tube, and the control system shuts down the diesel engine for protection based on the temperature signal; at the same time, the sensor displays the temperature signal in real time and outputs an alarm signal based on a preset threshold.

[0027] According to a third aspect of the present invention, a method for intelligently monitoring the temperature of a diesel engine crankshaft bearing is provided, comprising:

[0028] A sensor is installed on the crankshaft bearing cover of the diesel engine, and a temperature measuring square tube for transmitting signals is fixedly installed on the side of the oil pan of the diesel engine, and the sensor and the temperature measuring square tube are connected through an adaptive connection structure;

[0029] The sensor is used to obtain the temperature signal of the crankshaft bearing in real time, and the temperature signal is output to the control system of the diesel engine through the temperature measuring square tube via the adaptive connection structure;

[0030] The control system monitors and controls the diesel engine in real time for shutdown protection according to the temperature signal;

[0031] The sensor displays the temperature signal in real time and outputs an alarm signal according to a preset temperature threshold.

[0032] Due to the adoption of the above technical solution, the present invention has at least one of the following beneficial effects compared with the prior art:

[0033] The diesel engine and its crankshaft bearing temperature intelligent monitoring system and monitoring method provided by the present invention solve the problem that existing diesel engines lack crankshaft bearing temperature measurement means and cannot monitor the crankshaft operating status. By monitoring the bearing temperature, the moving parts of the diesel engine are protected, thereby improving the safety and reliability of the diesel engine operation.

[0034] The diesel engine and crankshaft bearing temperature intelligent monitoring system and monitoring method provided by the present invention effectively reduce the impact of diesel engine vibration on the temperature measuring square tube, avoid damage to the plug on the temperature measuring square tube caused by diesel engine vibration, and improve the environmental adaptability of the monitoring system.

[0035] The diesel engine and its crankshaft bearing temperature intelligent monitoring system and monitoring method provided by the present invention adopt the diesel engine crankshaft temperature measuring square tube and the effective cooperation of the convex clamp and the L-shaped bracket, which can effectively fix the temperature measuring square tube on the oil pan when the diesel engine is running at high speed, avoiding damage to the plug on the temperature measuring square tube caused by diesel engine vibration, thereby greatly improving the reliability and environmental adaptability of the system.

[0036] The present invention provides an intelligent monitoring system and method for the temperature of a diesel engine and its crankshaft bearing. A sensor mounting hole is provided on the diesel engine bearing cover. The crankshaft bearing temperature is measured using the sensor and a temperature measuring square tube. The temperature measuring square tube and the sensor are connected by a plug, which plays an important role in signal transmission. When the crankshaft bearing temperature is too high, a system alarm and shutdown protection will be triggered, thereby improving the safety of diesel engine operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0038] Figure 1 Schematic diagram of the structure of a sensor in a preferred embodiment of the present invention.

[0039] Figure 2 This is a schematic structural diagram of a temperature measuring square tube in a preferred embodiment of the present invention.

[0040] Figure 3 This is the overall installation layout diagram of the temperature measuring square tube in a preferred embodiment of the present invention.

[0041] Figure 4 This is a schematic structural diagram of a convex clamp for a temperature measuring square tube in a preferred embodiment of the present invention.

[0042] Figure 5 This is a schematic structural diagram of an L-shaped bracket for a temperature measuring square tube in a preferred embodiment of the present invention; wherein (a), (b), and (c) are three views of the L-shaped bracket.

[0043] Figure 6 The figure is a schematic diagram of the composition structure of the crankshaft bearing temperature intelligent monitoring system in a preferred embodiment of the present invention; (a) is a schematic diagram of the installation of the monitoring system, and (b) is a schematic diagram of the connection between the temperature measuring square tube and the sensor.

[0044] In the figure: 1 is a temperature measuring square tube, 1-1 is a shell, 1-2 is a socket, 1-3 is a connecting cable, 2-1 is an L-shaped bracket, 2-2 is a convex clamp, 3 is a diesel engine oil pan, 4 is a sensor, 4-1 is a plug, 4-2 is a cable, 4-3 is a threaded interface, and 5 is a crankshaft bearing. DETAILED DESCRIPTION

[0045] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process. It should be noted that those skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention.

[0046] One embodiment of the present invention provides an intelligent diesel engine crankshaft bearing temperature monitoring system. This system can monitor crankshaft bearing temperature in real time to improve the reliability and safety of diesel engine operation. Furthermore, a mounting assembly effectively secures the temperature-measuring square tube, enhancing the system's adaptability in high-vibration environments.

[0047] like Figure 6 As shown in (a) and (b), the diesel engine crankshaft bearing temperature intelligent monitoring system provided by this embodiment may include: a sensor 4 and a temperature measuring square tube 1; wherein:

[0048] The sensor 4 is adapted to be connected to the temperature measuring square tube 1;

[0049] In the working state, sensor 4 obtains the temperature signal of the diesel engine crankshaft bearing in real time, and uses the adaptive connection structure to transmit the temperature signal through the temperature measuring square tube for shutting down the diesel engine for protection; sensor 4 displays the temperature signal in real time and outputs an alarm signal according to the preset threshold.

[0050] In a preferred embodiment, there are one or more sensors 4 .

[0051] In a preferred embodiment, the sensor 4 is a thermal resistor PT100 temperature sensor.

[0052] In a preferred embodiment, the sensor 4 is provided with a cable 4-2 and a plug 4-1 for adapting and connecting to the temperature measuring square tube.

[0053] In a preferred embodiment, the sensor 4 is provided with a mounting threaded interface 4 - 3 .

[0054] The structure of sensor 4 is as follows Figure 1 shown.

[0055] In a preferred embodiment, there are one or more temperature measuring square tubes 1, each of which includes a shell 1-1, an integrated cable core arranged inside the shell, and a connecting cable 1-3 arranged on one side of the shell. The shell is provided with one or more sockets 1-2 for adapting to the sensor, and the integrated cable core is used to transmit the temperature signal; the multiple temperature measuring square tubes 1 are connected to each other using the plugs provided by the connecting cables 1-3 to realize the integrated installation of multiple temperature measuring square tubes.

[0056] In a preferred embodiment, the housing 1 - 1 is made of aluminum alloy.

[0057] The structure of the temperature measuring square tube 1 is as follows Figure 2 shown.

[0058] In a preferred embodiment, the monitoring system further comprises: a square tube installation assembly, and the temperature measuring square tube is installed on the square tube installation assembly.

[0059] In a preferred embodiment, the square tube mounting assembly, such as Figure 3 As shown, it includes: an L-shaped bracket 2-1 and a convex clamp 2-2; wherein:

[0060] The long end surface of the L-shaped bracket 2-1 is used to place the temperature measuring square tube;

[0061] The convex clamp 2-2 is used to clamp and fix the temperature measuring square tube on the L-shaped bracket.

[0062] In a preferred embodiment, if Figure 5 As shown in (a) to (c), the L-shaped bracket 2-1 is made of sheet metal.

[0063] In a preferred embodiment, if Figure 4 As shown, the convex clamp 2-2 is made of sheet metal; the height of the convex clamp 2-2 is slightly lower than the height of the temperature measuring square tube 1. Through the height difference, when the convex clamp 2-2 is tightened, the temperature measuring square tube 1 is clamped and fixed on the L-shaped bracket 2-1.

[0064] An embodiment of the present invention provides a diesel engine, which may include a diesel engine body and the diesel engine crankshaft bearing temperature intelligent monitoring system provided in the above embodiment of the present invention; wherein:

[0065] Sensor 4 is installed on the crankshaft bearing cover of the diesel engine body and is used to obtain the temperature signal of the crankshaft bearing in real time;

[0066] The temperature measuring square tube 1 is installed on the side of the oil pan of the diesel engine body through the square tube installation component, and is used to transmit the temperature signal in real time.

[0067] In a preferred embodiment, the short end face of the L-shaped bracket 2-1 is connected to the side face of the oil pan, and the long end face of the L-shaped bracket 2-1 supports the temperature measuring square tube so that the temperature measuring square tube 1 is in a vertical state; the convex clamp 2-2 installs and fixes the temperature measuring square tube 1 on the long end face of the L-shaped bracket 2-1.

[0068] In a preferred embodiment, the sensor 4 obtains the temperature signal of the diesel engine crankshaft bearing in real time, and uses an adaptive connection structure to transmit the temperature signal to the diesel engine control system through the temperature measuring square tube 1. The control system shuts down the diesel engine for protection based on the temperature signal; at the same time, the sensor 4 displays the temperature signal in real time and outputs an alarm signal based on a preset threshold.

[0069] It should be noted that the steps in the diesel engine provided by the present invention can be implemented using corresponding devices, components, etc. in the monitoring system. Those skilled in the art can refer to the technical solution of the monitoring system to implement the structure of the diesel engine. That is, the embodiments in the monitoring system can be understood as preferred examples for implementing the diesel engine, which will not be elaborated here.

[0070] An embodiment of the present invention provides a method for intelligently monitoring the temperature of a diesel engine crankshaft bearing, comprising:

[0071] S1, install a sensor on the crankshaft bearing cover of the diesel engine, fix a temperature measuring square tube for transmitting signals on the side of the diesel engine oil pan, and connect the sensor and the temperature measuring square tube through an adaptive connection structure;

[0072] S2 uses a sensor to obtain the temperature signal of the crankshaft bearing in real time, and outputs the temperature signal to the diesel engine control system through a temperature measuring square tube through an adapted connection structure;

[0073] S3, the control system monitors and controls the diesel engine in real time for shutdown protection based on the temperature signal;

[0074] S4, the sensor displays the temperature signal in real time and outputs an alarm signal according to the preset temperature threshold.

[0075] It should be noted that the steps in the method provided by the present invention can be implemented using corresponding devices, components, etc. in the monitoring system. Those skilled in the art can refer to the technical solution of the monitoring system to implement the step flow of the method, that is, the embodiments in the system can be understood as preferred examples of implementing the method, which will not be elaborated here.

[0076] The technical solution provided by the above embodiment of the present invention is further described below in conjunction with a preferred embodiment.

[0077] The diesel engine crankshaft bearing temperature intelligent monitoring system provided in this preferred embodiment includes a sensor, a temperature measuring square tube and a square tube mounting assembly.

[0078] in:

[0079] Sensor 4 uses a thermal resistor PT100 temperature sensor with an installation thread interface of M18ⅹ1.5, an insertion depth of 328mm, and comes with its own cable and plug.

[0080] The temperature measuring square tube 1 can be a three-section structure. The shell is made of aluminum alloy and has an integrated cable core wire inside for transmitting temperature signals. The shell 1-1 of the temperature measuring square tube 1 is provided with sockets 1-2 for connecting each sensor, and the connecting cable 1-3 on one end face of the shell is used for signal connection with adjacent temperature measuring square tubes, thereby realizing the integrated installation of multiple temperature measuring square tubes.

[0081] The square tube mounting assembly includes an L-shaped bracket 2-1 and a convex clamp 2-2. The L-shaped bracket 2-1 is made of CL.B, is 113mm long, 80mm wide, and 108mm high, and is made of sheet metal. There are two φ14 waist-shaped holes on the mounting surface with the diesel engine oil pan, and the center distance between the two holes is about 73mm; there are two φ9 through holes on the mounting surface that cooperates with the convex clamp 2-2, and the center distance between the two holes is 81mm; the convex clamp is made of CL.B, is 110mm long, 30mm wide, 52mm high, and 3mm thick, and has two φ9 waist-shaped holes at both ends, and the center distance between the two holes is 81mm. The overall shape is "convex", and it is made of sheet metal to fit the shape of the temperature measuring square tube for easy fixation.

[0082] The method for installing and fixing the temperature measuring square tube 1 through the square tube installation assembly includes:

[0083] a) The temperature measuring square tube 1 is supported by the side plane of the L-shaped bracket 2-1 so that the temperature measuring square tube 1 is in a vertical state.

[0084] b) Use the convex clamp 2-2 to install and fix the temperature measuring square tube 1 on the side of the L-shaped bracket 2-1 to ensure that it is stable and firm.

[0085] The temperature sensor 4 is connected to the socket on the temperature measuring square tube 1 to measure the bearing temperature in real time and use it for display and alarm.

[0086] The technical solution provided by the above embodiment of the present invention is further described below with reference to a specific application example.

[0087] Please also see Figures 1 to 5As shown in the figure, the temperature sensor is mounted on the crankshaft bearing cap. The temperature measuring square tube mounting assembly consists of a male clamp and an L-shaped bracket. The short end of the L-shaped bracket is secured to one side of the diesel engine oil pan using bolts through two 14mm waist-shaped holes on the back of the L-shaped bracket. The temperature measuring square tube is placed on the side surface (long end) of the L-shaped bracket. The male clamp is then placed on the side of the temperature measuring square tube opposite the measuring surface. Through the mounting holes on both sides, the temperature measuring square tube is completely secured using bolts and nuts. The height of the male clamp is slightly lower than the height of the temperature measuring square tube. Tightening the bolts and nuts causes slight deformation on both sides of the male clamp, thereby firmly pressing the temperature measuring square tube. There are three temperature measuring square tubes on the diesel engine, located on the B side of the oil pan. Each section of the temperature measuring square tube is fixed to the L-shaped bracket at at least two points. Even at high engine speeds, these multiple fixing points reduce the impact of engine vibration on the temperature measuring square tube and prevent damage to the plug on the square tube. Improve the environmental adaptability of the system.

[0088] The temperature sensor comes with a cable and plug. The sensor plug is connected and tightened to the socket on the temperature measuring square tube. When the diesel engine is running, the sensor measures the operating temperature of the crankshaft bearing in real time. When the temperature is too high, it will give an alarm and stop prompt, effectively protecting the crankshaft and other moving parts, and improving the reliability and safety of the diesel engine.

[0089] Tests have shown that the monitoring system provided by the above embodiment of the present invention, in which the sensors and temperature measuring square tubes are arranged, can successfully realize the function of temperature monitoring and can also work reliably in a vibration environment, thereby greatly improving the safety of diesel engine operation.

[0090] The intelligent monitoring system and method for the temperature of a diesel engine and its crankshaft bearing provided by the above-mentioned embodiments of the present invention can accurately measure the temperature of the diesel engine crankshaft bearing, protect the diesel engine crankshaft and other moving parts, and improve the safety of the diesel engine operation. At the same time, the fixing method of the temperature measuring square tube improves the reliability of the system installation and adaptability in high-vibration environments, and is suitable for wide application.

[0091] Matters not mentioned in the above embodiments of the present invention are well known in the art.

[0092] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various variations or modifications within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. An intelligent monitoring system for diesel engine crankshaft bearing temperature, characterized in that: include: Sensor and temperature measuring square tube; including: The sensor is adaptively connected to the temperature measuring square tube; It also includes: a square tube installation assembly, on which the temperature measuring square tube is installed; in: There are one or more temperature measuring square tubes, each of which includes a shell, an integrated cable core arranged inside the shell, and a connecting cable arranged on one side of the shell. The shell is provided with one or more sockets for adapting to the sensor. The integrated cable core is used to transmit the temperature signal. The multiple temperature measuring square tubes are connected to each other by the connecting cable to realize the integrated installation of multiple temperature measuring square tubes. The square tube mounting assembly comprises an L-shaped bracket and a convex clamp; wherein the long end face of the L-shaped bracket is used to place the temperature measuring square tube; the convex clamp is used to clamp and fix the temperature measuring square tube to the L-shaped bracket; the height of the convex clamp is slightly lower than the height of the temperature measuring square tube, and due to the height difference, the temperature measuring square tube is clamped and fixed to the L-shaped bracket when the convex clamp is tightened; In the working state, the sensor obtains the temperature signal of the diesel engine crankshaft bearing in real time, and uses the adaptive connection structure to transmit the temperature signal through the temperature measuring square tube for shutting down the diesel engine for protection; the sensor displays the temperature signal in real time and outputs an alarm signal according to a preset threshold.

2. The diesel engine crankshaft bearing temperature intelligent monitoring system according to claim 1, characterized in that: The sensor may further include any one or more of the following: - the number of the sensor is one or more; -The sensor adopts thermal resistance PT100 temperature sensor; -The sensor is provided with a cable and a plug for connecting to the temperature measuring square tube; -The sensor is provided with a mounting thread interface.

3. The diesel engine crankshaft bearing temperature intelligent monitoring system according to claim 1, characterized in that: The shell is made of aluminum alloy.

4. The diesel engine crankshaft bearing temperature intelligent monitoring system according to claim 1, characterized in that: The L-shaped bracket is made of sheet metal; and / or The convex clamp is made of sheet metal.

5. A diesel engine, characterized in that: The invention comprises a diesel engine body and a diesel engine crankshaft bearing temperature intelligent monitoring system according to any one of claims 1 to 4; wherein: The sensor is installed on the crankshaft bearing cover of the diesel engine body and is used to obtain the temperature signal of the crankshaft bearing in real time; The temperature measuring square tube is installed on the side of the oil pan of the diesel engine body through the square tube installation assembly, and is used to transmit the temperature signal in real time.

6. The diesel engine according to claim 5, characterized in that The short end face of the L-shaped bracket is connected to the side face of the oil pan, and the long end face of the L-shaped bracket supports the temperature measuring square tube so that the temperature measuring square tube is in a vertical state; the convex clamp installs and fixes the temperature measuring square tube on the long end face of the L-shaped bracket.

7. The diesel engine according to claim 6, characterized in that The sensor acquires the temperature signal of the diesel engine crankshaft bearing in real time, and uses an adaptive connection structure to transmit the temperature signal to the diesel engine control system through the temperature measuring square tube. The control system shuts down the diesel engine for protection based on the temperature signal. At the same time, the sensor displays the temperature signal in real time and outputs an alarm signal based on a preset threshold.

8. A method for intelligently monitoring the temperature of a diesel engine crankshaft bearing implemented by using the diesel engine crankshaft bearing temperature intelligent monitoring system according to any one of claims 1 to 4, characterized in that: include: A sensor is installed on the crankshaft bearing cover of the diesel engine, and a temperature measuring square tube for transmitting signals is fixedly installed on the side of the oil pan of the diesel engine, and the sensor and the temperature measuring square tube are connected through an adaptive connection structure; The sensor is used to obtain the temperature signal of the crankshaft bearing in real time, and the temperature signal is output to the control system of the diesel engine through the temperature measuring square tube via the adaptive connection structure; The control system monitors and controls the diesel engine in real time for shutdown protection according to the temperature signal; The sensor displays the temperature signal in real time and outputs an alarm signal according to a preset temperature threshold.

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