Intelligent remote fire alarm and control method thereof

Abstract

This invention discloses an intelligent remote fire alarm and its control method, comprising a housing, a cleaning component, and a communication component. The housing has several first through holes on its side, each containing a dustproof mesh. Inside the housing, a smoke sensor, a temperature sensor, a flame sensor, an ambient light sensor, a composite detector, and a wind speed sensor are mounted via a movable component. The movable component includes a miniature electric actuator and a mounting plate. This invention effectively solves the technical problems of traditional fire alarm sensors being fixedly installed inside the housing, leading to locked detection positions and orientations, and blind spots. Furthermore, by incorporating a cleaning component consisting of a drive motor, a rotating ring, and a cleaning brush, it addresses the technical difficulties of existing products where dust accumulation on the dustproof mesh causes sensor sensitivity degradation and necessitates periodic manual disassembly and maintenance.

Description

Technical Field

[0001] This invention relates to the field of metallurgical industry technology, specifically to an intelligent remote fire alarm and its control method. Background Technology

[0002] Fire alarms are key devices in building fire protection systems used to detect characteristic signals such as smoke, temperature, and flame radiation in the early stages of a fire. Conventional fire alarms typically have smoke sensors, temperature sensors, or flame sensors fixedly installed inside a housing. These sensors are exposed to ambient air through detection windows or openings in the housing. When physical parameters such as smoke concentration, temperature, or light radiation exceed preset thresholds, the sensors convert the detected fire characteristics into electrical signals, triggering the alarm circuit to issue an audible and visual alarm. With technological advancements, some fire alarms have begun to integrate multiple types of sensors (such as smoke-temperature composite detectors), improving the reliability of fire detection by simultaneously detecting changes in smoke concentration and temperature. Simultaneously, fire alarms with remote communication capabilities are also beginning to use wired or wireless communication components to transmit alarm signals to a remote monitoring platform.

[0003] However, existing fire alarms still have the following shortcomings:

[0004] First, existing fire alarm sensors are typically fixed inside the housing, and the position and orientation of the sensor detection window are locked after installation, making it difficult to adjust the detection direction according to environmental changes. In practical applications, the smoke and heat generated in the early stages of a fire often spread non-uniformly due to factors such as airflow and spatial layout. Sensors in fixed positions have detection blind spots, which may lead to delayed sensor response or even missed alarms, affecting the timeliness and reliability of fire warnings.

[0005] Secondly, dust accumulates easily on the dust filters or detection windows of existing fire alarms over long-term use. Dust adhering to the sensor's optical components or detection labyrinth can reduce sensor sensitivity, and in severe cases, even cause false alarms or missed alarms. Although some products reduce dust entry by using dust filters on the detection windows, these filters themselves are prone to clogging. Furthermore, existing products lack automatic dust filter cleaning functions, requiring regular manual disassembly and maintenance, which is costly and difficult to guarantee in a timely manner, especially in dusty industrial environments. Therefore, we need to propose an intelligent remote fire alarm and its control method. Summary of the Invention

[0006] The purpose of this invention is to provide an intelligent remote fire alarm and its control method to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An intelligent remote fire alarm includes:

[0009] The housing has several first through holes on its side, and a dustproof mesh is installed in each of the several first through holes.

[0010] The housing contains a smoke sensor, a temperature sensor, a flame sensor, an ambient light sensor, a composite detector, and a wind speed sensor, all mounted via a movable component. The movable component includes a miniature electric actuator and a mounting plate. The miniature electric actuator is installed inside the housing, and its output end is connected to the mounting plate. The smoke sensor, temperature sensor, flame sensor, ambient light sensor, composite detector, and wind speed sensor are all mounted on the mounting plate.

[0011] A cleaning component, installed inside the housing, is used for cleaning the dust filter;

[0012] A communication component is installed within the housing, and the communication component includes a wired communication component and a wireless communication component.

[0013] Preferably, the housing is provided with a mounting block, and the mounting block has a mounting thread hole.

[0014] Preferably, an alarm light is installed on the housing, a locator is installed inside the housing, and a speaker and an LCD screen are installed on the housing.

[0015] Preferably, the housing has a second through hole, and a baffle is provided at the second through hole. The baffle is connected to the mounting plate via a connecting rod.

[0016] Preferably, the baffle is provided with a sealing edge, which is in contact with the housing.

[0017] Preferably, the cleaning component includes a drive motor, a rotating ring, and a cleaning brush. The drive motor is installed inside the housing, the rotating ring is rotatably connected inside the housing, the cleaning brush is installed on the rotating ring and is in contact with the dustproof mesh, the output end of the drive motor is connected to a gear disk, and the rotating ring is provided with toothed edges that mesh with the gear disk.

[0018] Preferably, the rotating ring is provided with a slider, and the housing is provided with a groove for the slider to slide.

[0019] Preferably, a dust collection box is magnetically attached inside the housing, a first magnetic block is provided at the lower end of the first through hole of the housing, and a second magnetic block is provided on the dust collection box that is magnetically attached to the first magnetic block.

[0020] Preferably, it also includes a control module and a backup battery, installed inside the housing. The control module includes a microcontroller, a memory, and a real-time clock. The microcontroller, memory, real-time clock, backup battery, alarm light, locator, speaker, LCD screen, drive motor, wired communication component, and wireless communication component are electrically connected to each other.

[0021] A control method for an intelligent remote fire alarm includes the following steps:

[0022] S1. System Initialization and Self-Test: After the system is powered on, the microcontroller executes a self-test program to detect the power and working status of the smoke sensor, temperature sensor, flame sensor, ambient light sensor, wind speed sensor, communication component, alarm light, speaker, LCD screen, and backup battery. If any component fails the self-test, a voice fault prompt is issued through the speaker, and a fault code is uploaded to the remote monitoring platform through the wireless communication component.

[0023] S2. Multi-sensor fusion data acquisition and motion detection: After passing the self-test, the microcontroller controls the micro electric push rod to extend periodically, pushing the mounting plate to extend each sensor to the outside of the housing for active detection; simultaneously, it acquires environmental compensation data from the ambient light sensor, composite detector, and wind speed sensor, and performs temperature drift compensation and environmental baseline adaptive calibration on the original signals from the smoke sensor, temperature sensor, flame sensor, and composite detector to generate calibrated multi-dimensional fire characteristic data;

[0024] S3. Composite Fire Judgment and Anti-interference Decision: The microcontroller makes a comprehensive decision based on the multi-dimensional fire feature data and the built-in multi-parameter fusion fire judgment model. The model integrates at least the smoke concentration change rate, temperature rise rate, flame spectral characteristics, and gas component concentration. The signal is determined to be a real fire signal only when at least two sensor data exceed the preset linkage alarm threshold simultaneously, and after excluding false alarms caused by instantaneous airflow disturbances detected by the wind speed sensor.

[0025] S4. Tiered Alarm and Remote Linkage: After determining that a fire is real, a tiered alarm is triggered based on the severity of the multi-dimensional fire characteristic data.

[0026] Level 1 warning (initial smoldering): The alarm light flashes, the LCD screen displays the warning information, and the location information and warning signal are sent to a preset mobile terminal and management platform via the wireless communication component;

[0027] Level 2 alarm (open flame fire): The alarm light flashes loudly, the speaker plays a high-decibel alarm sound, and the alarm data, locator coordinates, and real-time sensor data are redundantly uploaded to the fire monitoring center through the wired communication component and wireless communication component, and the remote control command receiving interface is opened.

[0028] S5. Intelligent Cleaning and False Alarm Prevention Maintenance: After each detection cycle or when the detection sensitivity of the composite detector drops to 90% of the calibrated value, the microcontroller activates the cleaning component: driving the drive motor to rotate the rotating ring and cleaning brush along the surface of the dustproof mesh to remove accumulated dust; during the cleaning process, the micro electric push rod retracts the mounting plate, causing the baffle to block the second through hole, forming a relatively closed cleaning space to prevent dust from polluting the inside of the housing; the dust generated during cleaning falls into the dust collection box, and the light transmittance after cleaning is detected by the ambient light sensor to verify the cleaning effect;

[0029] S6. Low power consumption and emergency power supply management: When the system is working normally, it is powered by an external main power supply and the main power supply status is monitored in real time. When the main power supply fails, it automatically switches to the backup battery without delay. At the same time, the microcontroller reduces the brightness of the LCD screen and the sensor sampling frequency to extend the battery life, and reports the power failure event and remaining power information to the remote platform through the wireless communication component.

[0030] S7. Data storage and remote firmware upgrade: The microcontroller stores alarm events, sensor historical data and device operation logs in the memory, and supports receiving firmware upgrade packages sent by the remote platform through the wireless communication component. It performs silent upgrades during device idle periods and automatically rolls back to the previous stable version when the upgrade fails.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. This invention integrates a smoke sensor, temperature sensor, flame sensor, ambient light sensor, composite detector, and wind speed sensor onto a mounting plate within a housing. The micro-electric pusher periodically pushes the mounting plate to extend each sensor to the outside of the housing for active detection. This effectively solves the technical problems of traditional fire alarm sensors being fixed within the housing, resulting in locked detection positions and orientations, and blind spots. It significantly improves the sensors' ability to detect non-uniformly diffused smoke and heat in the early stages of a fire, shortens response delay time, and enhances the timeliness and reliability of fire warnings. Furthermore, combined with a multi-sensor fusion discrimination model, composite detector, and wind speed sensor anti-interference logic, it effectively reduces the false alarm rate caused by environmental airflow disturbances.

[0033] 2. This invention, by setting up a cleaning component consisting of a drive motor, a rotating ring, and a cleaning brush, allows the cleaning brush to contact and connect with the surface of the dustproof net. During the cleaning steps of the control method, the microcontroller periodically or automatically activates the cleaning component to rotate and clean the dustproof net. This solves the technical problem of existing products where long-term dust accumulation on the dustproof net leads to decreased sensor sensitivity and requires periodic manual disassembly and maintenance, significantly reducing maintenance costs and ensuring the long-term stable operation of the alarm in dusty environments. Simultaneously, during the cleaning process, a miniature electric push rod retracts the mounting plate and seals the second through hole with a baffle, forming a relatively enclosed cleaning space. This effectively prevents dust from contaminating the inside of the housing. Combined with a magnetic dust collection box to collect the cleaned dust, this further improves the reliability and maintainability of the cleaning process. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0036] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0037] Figure 4 for Figure 2 Enlarged view at point B in the middle;

[0038] Figure 5 This is a schematic diagram of the bottom cross-sectional structure of the present invention;

[0039] Figure 6 This is a schematic diagram of the cross-sectional structure of the present invention from below.

[0040] In the diagram: 1. Housing; 2. First through hole; 3. Dustproof net; 4. Smoke sensor; 5. Temperature sensor; 6. Flame sensor; 7. Ambient light sensor; 8. Wind speed sensor; 9. Miniature electric actuator; 10. Mounting plate; 11. Wired communication component; 12. Wireless communication component; 13. Mounting block; 14. Mounting threaded hole; 15. Alarm light; 16. Positioner; 17. Speaker; 18. LCD screen; 19. Second through hole; 20. Baffle; 21. Connecting rod; 22. Sealing edge; 23. Drive motor; 24. Rotating ring; 25. Cleaning brush; 26. Gear disk; 27. Toothed edge; 28. Slider; 29. ​​Slide groove; 30. Dust collection box; 31. First magnetic block; 32. Second magnetic block; 33. Backup battery; 34. Microcontroller; 35. Memory; 36. Real-time clock; 37. Composite detector. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1:

[0043] Please see Figures 1-6 The present invention provides a technical solution:

[0044] A smart remote fire alarm includes a housing 1, a cleaning component, a communication component, a control module, and a backup battery 33.

[0045] The housing 1 is integrally injection molded from flame-retardant ABS plastic, possessing excellent heat resistance and mechanical strength. A first through-hole 2 is provided on the side of the housing 1 to allow external air to flow into the housing 1 for sensor detection. Each first through-hole 2 is fitted with a dustproof mesh 3 made of fine stainless steel to filter large dust particles from the air, preventing dust from entering the housing 1 and affecting detection accuracy. A mounting block 13 is provided on the side of the housing 1, with threaded holes 14 for mounting the alarm to be fixed to a wall or ceiling or other monitored location using expansion bolts. The housing 1 is equipped with an alarm light 15, a speaker 17, and an LCD display 18. A locator 16 is installed inside the housing 1. The alarm light 15 flashes red in case of fire and displays yellow in case of malfunction. The locator 16 uses a GPS / BeiDou dual-mode positioning module to obtain the alarm's precise geographical location in real time. The speaker 17 provides voice alarm prompts and malfunction alerts. The LCD display 18 displays the detection values ​​of each sensor, the device's operating status, and network connection status in real time.

[0046] The housing 1 houses a smoke sensor 4, a temperature sensor 5, a flame sensor 6, an ambient light sensor 7, a composite detector, and a wind speed sensor 8, all mounted via a movable assembly. The smoke sensor 4 is a photoelectric smoke sensor; the temperature sensor 5 is an NTC thermistor temperature sensor; the flame sensor 6 is an ultraviolet / infrared dual-band flame detection sensor; the ambient light sensor 7 is a photoresistor; and the wind speed sensor 8 is a hot-film wind speed sensor. The movable assembly includes a miniature electric actuator 9 and a mounting plate 10. The miniature electric actuator 9 is fixedly mounted on the inner wall of the housing 1, and its output end is fixedly connected to the mounting plate 10. All the aforementioned sensors are fixedly mounted on the mounting plate 10. A second through-hole 19 is provided at the bottom of the housing 1, and a baffle 20 is provided at the second through-hole 19. The baffle 20 is fixedly connected to the mounting plate 10 via a connecting rod 21. The baffle 20 has a silicone rubber sealing edge 22. In the non-operating state, the sealing edge 22 is in close contact with the bottom surface of the housing 1, achieving a seal for the second through-hole 19. In normal standby mode, the miniature electric push rod 9 is in a retracted state, the mounting plate 10 is located inside the housing 1, and the baffle 20 blocks the second through hole 19, with each sensor in a protected state inside the housing 1. When fire detection is required, the control module sends an extension command to the miniature electric push rod 9, which pushes the mounting plate 10 downward, allowing each sensor to extend out of the housing 1 through the second through hole 19. At the same time, the baffle 20 moves downward, exposing the sensors to the external environment for accurate detection. After the detection is completed, the push rod retracts, retracting the sensors back into the housing 1, and the baffle 20 re-seals the second through hole 19, effectively protecting the sensors from dust contamination and mechanical damage.

[0047] The housing 1 also houses a cleaning assembly for automatic cleaning of the dust filter 3. This cleaning assembly includes a drive motor 23, a rotating ring 24, and a cleaning brush 25. The drive motor 23, a micro stepper motor, is fixedly mounted on the inner wall of the housing 1. The rotating ring 24 is rotatably connected to the housing 1 and can rotate freely around its axis. The cleaning brush 25 is mounted on the rotating ring 24, and its bristles maintain contact with the dust filter 3. A gear disk 26 is connected to the output end of the drive motor 23. The rotating ring 24 has teeth 27 that mesh with the gear disk 26. The drive motor 23 drives the rotating ring 24 to rotate via the gear disk 26, which in turn drives the cleaning brush 25 to rotate around the housing 1, removing dust adhering to the surface of the dust filter 3. A slider 28 is provided on the rotating ring 24, and a groove 29 is provided on the housing 1 for the slider 28 to slide smoothly, ensuring the stability of the rotating ring 24 during rotation. The housing 1 also contains a magnetically attached dust collection box 30. A first magnetic block 31 is located at the lower end of the first through-hole 2, and a second magnetic block 32, which magnetically engages with the first magnetic block 31, is located on the dust collection box 30. Dust swept off by the cleaning brush 25 falls into the dust collection box 30 under gravity. The user can periodically remove the dust collection box 30 for cleaning. The cleaning components are automatically activated by the control module according to a preset cycle, or manually triggered by the user via a remote terminal.

[0048] The housing 1 houses a communication component, which includes a wired communication component 11 and a wireless communication component 12. The wired communication component 11 includes an RS485 communication interface and an RJ45 Ethernet interface for wired data communication with the fire monitoring center via twisted-pair cable or network cable. The wireless communication component 12 includes a WiFi module, a 4G / 5G cellular communication module, and a LoRa long-range communication module, supporting automatic switching between multiple communication methods. When the wired network is normal, wired communication is prioritized; when the wired network fails, it automatically switches to wireless communication, ensuring reliable transmission of alarm information at all times. The wireless communication component 12 also supports data interaction with the user's smartphone APP, the fire monitoring center server, and the cloud platform.

[0049] The housing 1 also houses a control module and a backup battery 33. The control module includes a microcontroller 34, a memory 35, and a real-time clock 36. The microcontroller 34 uses an STM32F407 series ARM Cortex-M4 core microcontroller with a built-in floating-point unit, enabling rapid processing of multi-channel sensor data. The memory 35 includes Flash memory 35 and EEPROM. Flash memory 35 stores system firmware and alarm log data, while EEPROM stores user configuration parameters such as alarm thresholds and cleaning cycles. The real-time clock 36 uses a DS3231 high-precision clock chip to provide a precise time base for the system and records the timestamps of alarm occurrences. The microcontroller 34, memory 35, real-time clock 36, backup battery 33, alarm light 15, locator 16, speaker 17, LCD display 18, drive motor 23, wired communication component 11, and wireless communication component 12 are all electrically connected. The backup battery 33 uses a high-capacity lithium polymer battery, which automatically switches power supply when the main power is interrupted, ensuring that the alarm can continue to work in the event of a power outage. The backup battery 33 is also equipped with a battery management chip for monitoring battery power and charging and discharging protection. When the battery power is below 20%, the microcontroller 34 sends a low power warning message to the remote terminal through the communication component.

[0050] After the alarm is powered on, the microcontroller 34 first performs a system self-test, checking whether each sensor, communication module, alarm light 15, speaker 17, and LCD display 18 are working properly. After passing the self-test, it enters standby monitoring mode. The miniature electric push rod 9 periodically (e.g., every 5 minutes) extends each sensor out of the housing 1 to collect environmental parameters, including smoke concentration, ambient temperature, flame spectral signal, ambient light intensity, and airflow speed. The collected data is processed by the microcontroller 34 and displayed in real time on the LCD display 18, while also being uploaded to the fire monitoring center and the user's mobile APP via the communication component. The microcontroller 34 has a built-in multi-sensor fusion fire judgment algorithm. When the smoke concentration exceeds a preset threshold, the temperature rise rate is abnormal, or any two or more of the flame characteristic spectrum conditions are met simultaneously, the microcontroller 34 determines that a fire has occurred. It then drives the alarm light 15 to flash red and the speaker 17 to emit a high-decibel voice alarm. At the same time, it obtains the current location coordinates through the locator 16 and remotely sends alarm information, including alarm type, alarm time, geographical location, and real-time sensor data, to the fire monitoring center and the user terminal. Users can remotely view alarm details, monitor data in real time, and check equipment status via a mobile app, thereby achieving intelligent, reliable, and timely fire early warning and remote notification.

[0051] Example 2:

[0052] The difference between Example 2 and Example 1 is that:

[0053] A control method for an intelligent remote fire alarm includes the following steps:

[0054] S1. System Initialization and Self-Test: After the system is powered on, the microcontroller 34 executes a self-test program to check the power and working status of the smoke sensor 4, temperature sensor 5, flame sensor 6, ambient light sensor 7, wind speed sensor 8, communication components, alarm light 15, speaker 17, LCD display 18, and backup battery 33. If any component fails the self-test, a voice fault prompt is issued through the speaker 17, and a fault code is uploaded to the remote monitoring platform through the wireless communication component 12.

[0055] S2. Multi-sensor fusion data acquisition and motion detection: After passing the self-test, the microcontroller 34 controls the micro electric push rod 9 to extend periodically, pushing the mounting plate 10 to extend each sensor to the outside of the housing 1 for active detection; simultaneously, it acquires environmental compensation data from the ambient light sensor 7, the composite detector, and the wind speed sensor 8, and performs temperature drift compensation and environmental baseline adaptive calibration on the original signals from the smoke sensor 4, the temperature sensor 5, the flame sensor 6, and the composite detector to generate calibrated multi-dimensional fire characteristic data;

[0056] S3. Composite Fire Judgment and Anti-interference Decision: The microcontroller 34 makes a comprehensive decision based on multi-dimensional fire feature data and the built-in multi-parameter fusion fire judgment model. The model integrates at least the smoke concentration change rate, temperature rise rate, flame spectral characteristics and gas component concentration. The signal is determined to be a real fire signal only when at least two sensor data exceed the preset linkage alarm threshold at the same time, and after excluding false alarm factors caused by instantaneous airflow disturbances detected by the wind speed sensor 8.

[0057] S4. Tiered Alarm and Remote Linkage: After determining that a fire is real, a tiered alarm is triggered based on the severity of multi-dimensional fire characteristic data.

[0058] Level 1 warning (initial smoldering): The alarm light 15 flashes, the LCD screen 18 displays the warning information, and the location information and warning signal are sent to the preset mobile terminal and management platform through the wireless communication component 12.

[0059] Level 2 alarm (open flame fire): The alarm light 15 flashes loudly and the speaker 17 plays a high-decibel alarm sound. At the same time, the alarm data, the coordinates of the locator 16 and the real-time sensor data are redundantly uploaded to the fire monitoring center through the wired communication component 11 and the wireless communication component 12, and the remote control command receiving interface is opened.

[0060] S5. Intelligent Cleaning and False Alarm Prevention Maintenance: After each detection cycle or when the detection sensitivity of the composite detector drops to 90% of the calibrated value, the microcontroller 34 activates the cleaning component: the drive motor 23 drives the rotating ring 24 and cleaning brush 25 to rotate and sweep along the surface of the dustproof net 3 to remove accumulated dust; during the cleaning process, the micro electric push rod 9 retracts the mounting plate 10, causing the baffle 20 to block the second through hole 19, forming a relatively closed cleaning space to prevent dust from polluting the inside of the housing 1; the dust generated during cleaning falls into the dust collection box 30, and the light transmittance after cleaning is detected by the ambient light sensor 7 to verify the cleaning effect;

[0061] S6. Low power consumption and emergency power supply management: When the system is working normally, it is powered by an external main power supply and the main power supply status is monitored in real time. When the main power supply fails, it automatically switches to the backup battery 33 without delay. At the same time, the microcontroller 34 reduces the brightness of the LCD screen 18 and the sensor sampling frequency to extend the battery life, and reports the power failure event and remaining power information to the remote platform through the wireless communication component 12.

[0062] S7. Data storage and remote firmware upgrade: The microcontroller 34 stores alarm events, sensor historical data and device operation logs in the memory 35, and supports receiving firmware upgrade packages sent by the remote platform through the wireless communication component 12. It performs silent upgrades during device idle periods and automatically rolls back to the previous stable version when the upgrade fails.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent remote fire alarm, characterized in that, include: The housing (1) has several first through holes (2) on its side, and a dustproof net (3) is installed in the several first through holes (2); The housing (1) is equipped with a smoke sensor (4), a temperature sensor (5), a flame sensor (6), an ambient light sensor (7), a composite detector (37), and a wind speed sensor (8) via a movable component. The movable component includes a miniature electric push rod (9) and a mounting plate (10). The miniature electric push rod (9) is installed inside the housing (1), and its output end is connected to the mounting plate (10). The smoke sensor (4), temperature sensor (5), flame sensor (6), ambient light sensor (7), composite detector (37), and wind speed sensor (8) are all mounted on the mounting plate (10). A cleaning component, installed inside the housing (1), is used for cleaning the dustproof net (3); A communication component is installed inside the housing (1), the communication component including a wired communication component (11) and a wireless communication component (12).

2. The intelligent remote fire alarm device according to claim 1, characterized in that: The housing (1) is provided with a mounting block (13), and the mounting block (13) is provided with a mounting thread hole (14).

3. The intelligent remote fire alarm device according to claim 1, characterized in that: An alarm light (15) is installed on the housing (1), and a locator (16) is installed inside the housing (1). A speaker (17) and an LCD screen (18) are also installed on the housing (1).

4. The intelligent remote fire alarm device according to claim 1, characterized in that: The housing (1) has a second through hole (19), and a baffle (20) is provided at the second through hole (19). The baffle (20) is connected to the mounting plate (10) through a connecting rod (21).

5. The intelligent remote fire alarm device according to claim 4, characterized in that: The baffle (20) is provided with a sealing edge (22), which is in contact with the housing (1).

6. The intelligent remote fire alarm device according to claim 1, characterized in that: The cleaning assembly includes a drive motor (23), a rotating ring (24), and a cleaning brush (25). The drive motor (23) is installed inside the housing (1). The rotating ring (24) is rotatably connected inside the housing (1). The cleaning brush (25) is installed on the rotating ring (24) and is in contact with the dustproof net (3). The output end of the drive motor (23) is connected to a gear disk (26). The rotating ring (24) is provided with toothed edges (27) that mesh with the gear disk (26).

7. The intelligent remote fire alarm device according to claim 6, characterized in that: The rotating ring (24) is provided with a slider (28), and the housing (1) is provided with a groove (29) for the slider (28) to slide.

8. The intelligent remote fire alarm device according to claim 7, characterized in that: The housing (1) has a dust collection box (30) magnetically attached inside. The lower end of the first through hole (2) of the housing (1) is provided with a first magnetic block (31), and the dust collection box (30) is provided with a second magnetic block (32) magnetically attached to the first magnetic block (31).

9. The intelligent remote fire alarm device according to claim 1, characterized in that: It also includes a control module and a backup battery (33), which are installed in the housing (1). The control module includes a microcontroller (34), a memory (35) and a real-time clock (36). The microcontroller (34), memory (35), real-time clock (36), backup battery (33), alarm light (15), locator (16), speaker (17), liquid crystal display (18), drive motor (23), wired communication component (11) and wireless communication component (12) are electrically connected.

10. A control method for an intelligent remote fire alarm, characterized in that, The following methods and steps are included: S1. System initialization and self-test: After the system is powered on, the microcontroller (34) executes a self-test program to detect the power and working status of the smoke sensor (4), temperature sensor (5), flame sensor (6), ambient light sensor (7), wind speed sensor (8), communication component, alarm light (15), speaker (17), LCD screen (18) and backup battery (33); if any component fails the self-test, a voice fault prompt is issued through the speaker (17), and a fault code is uploaded to the remote monitoring platform through the wireless communication component (12); S2. Multi-sensor fusion data acquisition and motion detection: After the self-test is passed, the microcontroller (34) controls the micro electric push rod (9) to extend periodically, pushing the mounting plate (10) to extend each sensor to the outside of the housing (1) for active detection; simultaneously acquire the environmental compensation data of the ambient light sensor (7) and wind speed sensor (8), and perform temperature drift compensation and environmental baseline adaptive calibration on the original signals of the smoke sensor (4), temperature sensor (5), flame sensor (6) and composite detector (37) to generate calibrated multi-dimensional fire feature data; S3. Composite fire discrimination and anti-interference decision: The microcontroller (34) makes a comprehensive decision based on the multi-dimensional fire feature data and the built-in multi-parameter fusion fire discrimination model. The model integrates at least the smoke concentration change rate, temperature rise rate, flame spectral characteristics and gas component concentration. The signal is determined to be a real fire signal if and only if at least two sensor data exceed the preset linkage alarm threshold at the same time, and after excluding false alarm factors caused by instantaneous airflow disturbance detected by the wind speed sensor (8). S4. Tiered Alarm and Remote Linkage: After determining that a fire is real, a tiered alarm is triggered based on the severity of the multi-dimensional fire characteristic data. Level 1 warning (initial smoldering): The alarm light (15) is activated to flash, the LCD screen (18) displays the warning information, and the location information and warning signal are sent to the preset mobile terminal and management platform through the wireless communication component (12); Level 2 alarm (open flame fire): The alarm light (15) is activated to flash strongly, the speaker (17) plays a high-decibel alarm sound, and the alarm data, the coordinates of the locator (16) and the real-time sensor data are redundantly uploaded to the fire monitoring center through the wired communication component (11) and the wireless communication component (12), and the remote control command receiving interface is opened. S5. Intelligent cleaning and false alarm prevention maintenance: After each detection cycle ends or when the detection sensitivity of the composite detector (37) drops to 90% of the calibrated value, the microcontroller (34) starts the cleaning component: drives the drive motor (23) to drive the rotating ring (24) and cleaning brush (25) to rotate and sweep along the surface of the dustproof net (3) to remove accumulated dust; during the sweeping process, the micro electric push rod (9) retracts the mounting plate (10) and makes the baffle (20) block the second through hole (19) to form a relatively closed cleaning space to prevent dust from polluting the inside of the shell (1); the dust generated during sweeping falls into the dust collection box (30) and the light transmittance after cleaning is detected by the ambient light sensor (7) to verify the cleaning effect; S6. Low power consumption and emergency power supply management: When the system is working normally, it is powered by an external main power supply and the main power supply status is monitored in real time. When the main power supply fails, it automatically switches to the backup battery (33) without delay. At the same time, the microcontroller (34) reduces the brightness of the liquid crystal display (18) and the sensor sampling frequency to extend the battery life, and reports the power failure event and remaining power information to the remote platform through the wireless communication component (12). S7. Data storage and remote firmware upgrade: The microcontroller (34) stores alarm events, sensor historical data and device operation logs in the memory (35), and supports receiving firmware upgrade packages sent by the remote platform through the wireless communication component (12), performing silent upgrades during device idle periods, and automatically rolling back to the previous stable version when the upgrade fails.

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